AUD

Pick a currency

AUD

Pick a currency

FREE EXPRESS DELIVERY

OVER A$99 (Aust), See Shipping

WORLDWIDE SHIPPING (Tax Free)

Flat Rate Delivery Options

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.

Filter + Sort by View Grid

List

Refine

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

-

$1.70

X

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

$1.70

More Details →

Black Violet - 2ml

-

$1.70

X

Black Violet - 2ml

$1.70

More Details →

Earth - 2ml

Earth - 2ml

-

$1.70

X

Earth - 2ml

/ 1 / 2

Earth - 2ml

$1.70

More Details →

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

-

$1.70

X

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

GoGo - 2ml

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

Robert Oster Black is Black - 2ml Ink Sample

Black is Black - 2ml

-

$1.70

X

Robert Oster Black is Black - 2ml Ink Sample

/ 1 / 2

Black is Black - 2ml

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

Robert Oster Astorquiza Rot - 2ml Ink Samples

Astorquiza Rot - 2ml

-

$1.70

X

Robert Oster Astorquiza Rot - 2ml Ink Samples

Astorquiza Rot - 2ml

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

Romeo & Juliet - 2ml

Romeo & Juliet - 2ml

-

$1.70

X

Romeo & Juliet - 2ml

/ 1 / 2

Romeo & Juliet - 2ml

$1.70

More Details →

Burgundy Chocolate Notes - 2ml

Burgundy Chocolate Notes - 2ml

-

$1.70

X

Burgundy Chocolate Notes - 2ml

/ 1 / 2

Burgundy Chocolate Notes - 2ml

$1.70

More Details →

Robert Oster Australis Oak - 2ml Ink Sample

Australis Oak - 2ml

-

$1.70

X

Robert Oster Australis Oak - 2ml Ink Sample

/ 1 / 2

Australis Oak - 2ml

$1.70

More Details →

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

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

-

$2.00

X

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

/ 1 / 2

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

$2.00

More Details →

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

-

$1.70

X

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

$1.70

More Details →

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

Green Green - 2ml

-

$1.70

X

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

Green Green - 2ml

$1.70

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

-

$1.70

X

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

Green Diamond - 2ml

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

Light Green - 2ml

-

$1.70

X

Light Green - 2ml

$1.70

More Details →

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

-

$1.70

X

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

$1.70

More Details →

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

-

$1.70

X

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

$1.70

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

-

$1.70

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.

Golden Brown - 2ml

$1.70

More Details →

Robert Oster Choc Pudding - 2ml Ink Sample

Choc Pudding - 2ml

-

$1.70

X

Robert Oster Choc Pudding - 2ml Ink Sample

/ 1 / 2

Choc Pudding - 2ml

$1.70

More Details →

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

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

-

$2.00

X

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

/ 1 / 2

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

$2.00

More Details →

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

Envy (Shake 'N' Shimmy) - 2ml

-

$2.00

X

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

/ 1 / 2

Envy (Shake 'N' Shimmy) - 2ml

$2.00

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

-

$2.00

X

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

/ 1 / 2

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

$2.00

More Details →

Robert Oster Orange Rumble - 2ml Ink Samples

Orange Rumble - 2ml

-

$1.70

X

Robert Oster Orange Rumble - 2ml Ink Samples

Orange Rumble - 2ml

$1.70

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

-

$1.70

X

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

$1.70

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

-

$1.70

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.

Blue Night - 2ml

$1.70

More Details →

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

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

-

$2.00

X

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

/ 1 / 2

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

$2.00

More Details →

Robert Oster Aussie Liquid Gold (Shake 'N' Shimmy) - 2ml Ink Sample

Aussie Liquid Gold (Shake 'N' Shimmy) - 2ml

-

$2.00

X

Robert Oster Aussie Liquid Gold (Shake 'N' Shimmy) - 2ml Ink Sample

/ 1 / 2

Aussie Liquid Gold (Shake 'N' Shimmy) - 2ml

$2.00

More Details →

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

Red Gold (Shake 'N' Shimmy) - 2ml

-

$2.00

X

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

/ 1 / 2

Red Gold (Shake 'N' Shimmy) - 2ml

$2.00

More Details →

Ink swatch of Purple Jazz - 2ml by Robert Oster, featuring a deep blue-purple hue on white, with The Desk Bandit watermark visible.

Purple Jazz - 2ml

-

$1.70

X

Ink swatch of Purple Jazz - 2ml by Robert Oster, featuring a deep blue-purple hue on white, with The Desk Bandit watermark visible.

Purple Jazz - 2ml

$1.70

More Details →

Sushi - 2ml ink sample: A deep red, watercolor-like swatch with soft edges, showcasing the vibrant hue of Robert Oster's fountain pen ink.

Sushi - 2ml

-

$1.70

X

Sushi - 2ml ink sample: A deep red, watercolor-like swatch with soft edges, showcasing the vibrant hue of Robert Oster's fountain pen ink.

/ 1 / 2

Sushi - 2ml

$1.70

More Details →

Robert Oster Taiwan Blue - 2ml Ink Sample

Taiwan Blue - 2ml

-

$1.70

X

Robert Oster Taiwan Blue - 2ml Ink Sample

/ 1 / 2

Taiwan Blue - 2ml

$1.70

More Details →

Sterling Silver (Shake 'N' Shimmy) - 2ml ink sample with near-black hue, metallic shimmer, and brushed texture, ideal for testing color and flow.

Sterling Silver (Shake 'N' Shimmy) - 2ml

-

$2.00

X

Sterling Silver (Shake 'N' Shimmy) - 2ml ink sample with near-black hue, metallic shimmer, and brushed texture, ideal for testing color and flow.

/ 1 / 2

Sterling Silver (Shake 'N' Shimmy) - 2ml

$2.00

More Details →

Deep Purple - 2ml ink sample, showing a dark blue-violet swatch with a goldish-brown sheen, reflecting Robert Oster's unique Australian-inspired palette.

Deep Purple - 2ml

-

$1.70

X

Deep Purple - 2ml ink sample, showing a dark blue-violet swatch with a goldish-brown sheen, reflecting Robert Oster's unique Australian-inspired palette.

/ 1 / 2

Deep Purple - 2ml

$1.70

More Details →

View All

desk bandit icon of truck with clock on it

Fast Dispatch

Fast processing of orders

desk bandit page icon of globe to signify global shipping

Global Shipping

Fully trackable

desk bandit icons 3 stationery implements

Curated

by picky people

Customer Service

THE DESK BANDIT

© 2025 Desk Bandit.

Powered by Shopify

American express

Apple pay

Master

Paypal

Shopify pay

Unionpay

Visa