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Robert Oster

Explore our collection of Robert Oster Signature Inks – made in Australia and described as well-behaved fountain pen inks. Each ink is produced in a just-in-time manner to meet demand and is bottled in recyclable PET plastic. Robert Oster inks are non-toxic and eco-friendly, crafted with care for both writing performance and environmental impact.

Looking for the full range or more? Browse all bottled fountain pen inks or shop ink samples to try before you commit.

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Verde de Rio - 2ml ink sample by Robert Oster, featuring a bright yellow-green abstract swatch with dark shading, showcasing its unique dye-based color.

Verde de Rio - 2ml

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$1.70

$1.36

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Verde de Rio - 2ml ink sample by Robert Oster, featuring a bright yellow-green abstract swatch with dark shading, showcasing its unique dye-based color.

Sale

Verde de Rio - 2ml

$1.70 $1.36

More Details →

Robert Oster Barossa Gilt (Shake 'N' Shimmy) - 2ml Ink Sample

Barossa Gilt (Shake 'N' Shimmy) - 2ml

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$2.00

$1.60

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Robert Oster Barossa Gilt (Shake 'N' Shimmy) - 2ml Ink Sample

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Barossa Gilt (Shake 'N' Shimmy) - 2ml

$2.00 $1.60

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Earth - 2ml

Earth - 2ml

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$1.70

$1.36

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Earth - 2ml

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Earth - 2ml

$1.70 $1.36

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Maroon 1789 - 2ml ink sample by Robert Oster, showcasing a rich burgundy tone with darker pigment pools, labeled THE DESK BANDIT watermark.

Maroon 1789 - 2ml

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$1.70

$1.36

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Maroon 1789 - 2ml ink sample by Robert Oster, showcasing a rich burgundy tone with darker pigment pools, labeled THE DESK BANDIT watermark.

Sale

Maroon 1789 - 2ml

$1.70 $1.36

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Evening Sapphire - 2ml ink sample, dark blue swab on white background, watermarked The Desk Bandit, showcasing Robert Oster's dye-based ink.

Evening Sapphire - 2ml

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$1.70

$1.36

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Evening Sapphire - 2ml ink sample, dark blue swab on white background, watermarked The Desk Bandit, showcasing Robert Oster's dye-based ink.

Sale

Evening Sapphire - 2ml

$1.70 $1.36

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Black Violet - 2ml

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$1.70

$1.36

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Sale

Black Violet - 2ml

$1.70 $1.36

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Robert Oster Black is Black - 2ml Ink Sample

Black is Black - 2ml

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$1.70

$1.36

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Robert Oster Black is Black - 2ml Ink Sample

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Black is Black - 2ml

$1.70 $1.36

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GoGo - 2ml ink sample: a vivid blue blot with metallic sheen, showcasing the Robert Oster ink's vibrant expression for testing color and flow.

GoGo - 2ml

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$1.70

$1.36

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GoGo - 2ml ink sample: a vivid blue blot with metallic sheen, showcasing the Robert Oster ink's vibrant expression for testing color and flow.

/ 1 / 2

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GoGo - 2ml

$1.70 $1.36

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Yellow Sunset - 2ml ink sample showing a yellow-orange abstract blot on white, resembling a watercolor stain, highlighting its vibrant, free-form dye-based nature.

Yellow Sunset - 2ml

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$1.70

$1.36

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Yellow Sunset - 2ml ink sample showing a yellow-orange abstract blot on white, resembling a watercolor stain, highlighting its vibrant, free-form dye-based nature.

Sale

Yellow Sunset - 2ml

$1.70 $1.36

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Robert Oster Romeo & Juliet - 2ml Ink Sample

Romeo & Juliet - 2ml

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$1.70

$1.36

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Robert Oster Romeo & Juliet - 2ml Ink Sample

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Romeo & Juliet - 2ml

$1.70 $1.36

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Robert Oster Australis Oak - 2ml Ink Sample

Australis Oak - 2ml

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$1.70

$1.36

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Robert Oster Australis Oak - 2ml Ink Sample

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Australis Oak - 2ml

$1.70 $1.36

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Forest Green - 2ml ink sample: A deep, forest-green swatch with a dark sheen effect, featuring a THE DESK BANDIT watermark, representing Robert Oster's dye-based ink.

Forest Green - 2ml

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$1.70

$1.36

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Forest Green - 2ml ink sample: A deep, forest-green swatch with a dark sheen effect, featuring a THE DESK BANDIT watermark, representing Robert Oster's dye-based ink.

Sale

Forest Green - 2ml

$1.70 $1.36

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Robert Oster Astorquiza Rot - 2ml Ink Samples

Astorquiza Rot - 2ml

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$1.70

$1.36

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Robert Oster Astorquiza Rot - 2ml Ink Samples

Sale

Astorquiza Rot - 2ml

$1.70 $1.36

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Rubine - 2ml ink sample by Robert Oster, featuring a vivid red pigment blotch on a white background, with a faint THE DESK BANDIT watermark.

Rubine - 2ml

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$1.70

$1.36

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Rubine - 2ml ink sample by Robert Oster, featuring a vivid red pigment blotch on a white background, with a faint THE DESK BANDIT watermark.

Sale

Rubine - 2ml

$1.70 $1.36

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Oval-shaped deep purple ink swatch on white, branded THE DESK BANDIT, representing Robert Oster's Purple Rock - 2ml dye-based ink sample.

Purple Rock - 2ml

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$1.70

$1.36

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Oval-shaped deep purple ink swatch on white, branded THE DESK BANDIT, representing Robert Oster's Purple Rock - 2ml dye-based ink sample.

Sale

Purple Rock - 2ml

$1.70 $1.36

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Green Green - 2ml ink sample by Robert Oster on white paper with darker shading, showcasing The Desk Bandit watermark.

Green Green - 2ml

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$1.70

$1.36

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Green Green - 2ml ink sample by Robert Oster on white paper with darker shading, showcasing The Desk Bandit watermark.

Sale

Green Green - 2ml

$1.70 $1.36

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Swatch of Robert Oster's Copper - 2ml ink, displaying rich shading and pooling effects, with faint THE DESK BANDIT branding on white paper.

Copper - 2ml

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$1.70

$1.36

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Swatch of Robert Oster's Copper - 2ml ink, displaying rich shading and pooling effects, with faint THE DESK BANDIT branding on white paper.

Sale

Copper - 2ml

$1.70 $1.36

More Details →

Robert Oster Burgundy Chocolate Notes - 2ml Ink Sample

Burgundy Chocolate Notes - 2ml

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$1.70

$1.36

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Robert Oster Burgundy Chocolate Notes - 2ml Ink Sample

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Burgundy Chocolate Notes - 2ml

$1.70 $1.36

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Light Green - 2ml

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$1.70

$1.36

X

Sale

Light Green - 2ml

$1.70 $1.36

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Bronze - 2ml ink sample: An abstract vertical blot in deep brown/near-black with subtle tonal variations, featuring The Desk Bandit watermark, representing Robert Oster's dye-based ink.

Bronze - 2ml

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$1.70

$1.36

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Bronze - 2ml ink sample: An abstract vertical blot in deep brown/near-black with subtle tonal variations, featuring The Desk Bandit watermark, representing Robert Oster's dye-based ink.

Sale

Bronze - 2ml

$1.70 $1.36

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Robert Oster Violet Clouds (Shake 'N' Shimmy) - 2ml Ink Sample

Violet Clouds (Shake 'N' Shimmy) - 2ml

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$2.00

$1.60

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Robert Oster Violet Clouds (Shake 'N' Shimmy) - 2ml Ink Sample

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Violet Clouds (Shake 'N' Shimmy) - 2ml

$2.00 $1.60

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Spearmint - 2ml ink sample by Robert Oster, showing dark teal-green hue with pooling edges and subtle center shading, from The Desk Bandit's review.

Spearmint - 2ml

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$1.70

$1.36

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Spearmint - 2ml ink sample by Robert Oster, showing dark teal-green hue with pooling edges and subtle center shading, from The Desk Bandit's review.

Sale

Spearmint - 2ml

$1.70 $1.36

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Green Olive - 2ml ink swatch on paper, showing warm golden-brown tones with sepia feathering, featuring THE DESK BANDIT watermark, indicating an ink sample.

Green Olive - 2ml

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$1.70

$1.36

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Green Olive - 2ml ink swatch on paper, showing warm golden-brown tones with sepia feathering, featuring THE DESK BANDIT watermark, indicating an ink sample.

Sale

Green Olive - 2ml

$1.70 $1.36

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Robert Oster Bondi Blue - 2ml ink sample swatch on white paper, showcasing a deep blue hue with purplish sheen, from The Desk Bandit.

Bondi Blue - 2ml

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$1.70

$1.36

X

Robert Oster Bondi Blue - 2ml ink sample swatch on white paper, showcasing a deep blue hue with purplish sheen, from The Desk Bandit.

Sale

Bondi Blue - 2ml

$1.70 $1.36

More Details →

Grun Schwarz - 2ml ink sample by Robert Oster, featuring a dark hue with burgundy undertones, displayed as a swatch with The Desk Bandit watermark.

Grun Schwarz - 2ml

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$1.70

$1.36

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Grun Schwarz - 2ml ink sample by Robert Oster, featuring a dark hue with burgundy undertones, displayed as a swatch with The Desk Bandit watermark.

Sale

Grun Schwarz - 2ml

$1.70 $1.36

More Details →

Close-up of a dark brown ink swatch labeled The Desk Bandit, showcasing the Robert Oster Golden Brown - 2ml fountain pen ink sample on white paper.

Golden Brown - 2ml

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$1.70

$1.36

X

Close-up of a dark brown ink swatch labeled The Desk Bandit, showcasing the Robert Oster Golden Brown - 2ml fountain pen ink sample on white paper.

Sale

Golden Brown - 2ml

$1.70 $1.36

More Details →

Sparkling Cranberry (Shake 'N' Shimmy) - 2ml ink sample in a labelled tube, perfect for testing vibrant color and flow before purchase.

Sparkling Cranberry (Shake 'N' Shimmy) - 2ml

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$2.00

$1.60

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Sparkling Cranberry (Shake 'N' Shimmy) - 2ml ink sample in a labelled tube, perfect for testing vibrant color and flow before purchase.

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Sale

Sparkling Cranberry (Shake 'N' Shimmy) - 2ml

$2.00 $1.60

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Tangerine - 2ml

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$1.70

$1.36

X

Sale

Tangerine - 2ml

$1.70 $1.36

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Robert Oster Choc Pudding - 2ml Ink Sample

Choc Pudding - 2ml

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$1.70

$1.36

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Robert Oster Choc Pudding - 2ml Ink Sample

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Choc Pudding - 2ml

$1.70 $1.36

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Robert Oster Terra Australis (Shake 'N' Shimmy) - 2ml Ink Sample

Terra Australis (Shake 'N' Shimmy) - 2ml

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$2.00

$1.60

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Robert Oster Terra Australis (Shake 'N' Shimmy) - 2ml Ink Sample

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Sale

Terra Australis (Shake 'N' Shimmy) - 2ml

$2.00 $1.60

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Robert Oster Orange Rumble - 2ml Ink Samples

Orange Rumble - 2ml

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$1.70

$1.36

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Robert Oster Orange Rumble - 2ml Ink Samples

Sale

Orange Rumble - 2ml

$1.70 $1.36

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Ryde Green - 2ml ink sample by Robert Oster, featuring an abstract green splash on white, with a faint The Desk Bandit watermark at the bottom.

Ryde Green - 2ml

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$1.70

$1.36

X

Ryde Green - 2ml ink sample by Robert Oster, featuring an abstract green splash on white, with a faint The Desk Bandit watermark at the bottom.

Sale

Ryde Green - 2ml

$1.70 $1.36

More Details →

Swatch of Robert Oster's Blue Night ink, 2ml sample, displayed as a dark navy watercolor stroke on white, with The Desk Bandit watermark below.

Blue Night - 2ml

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$1.70

$1.36

X

Swatch of Robert Oster's Blue Night ink, 2ml sample, displayed as a dark navy watercolor stroke on white, with The Desk Bandit watermark below.

Sale

Blue Night - 2ml

$1.70 $1.36

More Details →

Wind - 2ml

Wind - 2ml

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$1.70

$1.36

X

Wind - 2ml

/ 1 / 2

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Wind - 2ml

$1.70 $1.36

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Robert Oster Morning Shine (Shake 'N' Shimmy) - 2ml Ink Sample

Morning Shine (Shake 'N' Shimmy) - 2ml

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$2.00

$1.60

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Robert Oster Morning Shine (Shake 'N' Shimmy) - 2ml Ink Sample

/ 1 / 2

Sale

Morning Shine (Shake 'N' Shimmy) - 2ml

$2.00 $1.60

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Robert Oster Envy (Shake 'N' Shimmy) - 2ml Ink Sample

Envy (Shake 'N' Shimmy) - 2ml

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$2.00

$1.60

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Robert Oster Envy (Shake 'N' Shimmy) - 2ml Ink Sample

/ 1 / 2

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Envy (Shake 'N' Shimmy) - 2ml

$2.00 $1.60

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True Blue - 2ml ink sample by Robert Oster, featuring a deep blue watercolor swatch with a cloud-like texture and reddish-purple edges, reflecting Australian inspiration.

True Blue - 2ml

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$1.70

$1.36

X

True Blue - 2ml ink sample by Robert Oster, featuring a deep blue watercolor swatch with a cloud-like texture and reddish-purple edges, reflecting Australian inspiration.

/ 1 / 2

Sale

True Blue - 2ml

$1.70 $1.36

More Details →

Green Diamond - 2ml ink sample showing teal-green swatch with purplish sheen and darker striations, featuring THE DESK BANDIT watermark.

Green Diamond - 2ml

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$1.70

$1.36

X

Green Diamond - 2ml ink sample showing teal-green swatch with purplish sheen and darker striations, featuring THE DESK BANDIT watermark.

Sold Out

Green Diamond - 2ml

$1.70 $1.36

This product is sold out

More Details →

Robert Oster Taiwan Blue - 2ml Ink Sample

Taiwan Blue - 2ml

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$1.70

$1.36

X

Robert Oster Taiwan Blue - 2ml Ink Sample

/ 1 / 2

Sold Out

Taiwan Blue - 2ml

$1.70 $1.36

This product is sold out

More Details →

Orange Zest - 2ml ink sample by Robert Oster, featuring a bright red-orange brushstroke with varied pigment density on a textured white background.

Orange Zest - 2ml

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$1.70

$1.36

X

Orange Zest - 2ml ink sample by Robert Oster, featuring a bright red-orange brushstroke with varied pigment density on a textured white background.

Sold Out

Orange Zest - 2ml

$1.70 $1.36

This product is sold out

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