Octopus Fluids Sheen Inks Get ready for an almost magical writing experience! The Octopus Fluids Sheen Ink collection offers you a range of enchanting inks with a very special two-color effect. Each ink is inspired by a mythical creature, be it the fairytale unicorn, the mysterious Medusa, the enigmatic djinn or the shy sea snake. The colors of these inks are as magical as their names. To enjoy the Sheen effect in all its glory, we recommend high-quality, non-absorbent writing paper and fountain pen with generous ink flow and a wide nib. The effect is particularly noticeable when you write with a glass pen or calligraphy pen, or use a refillable brush pen. To show off just the base color without Sheen, use absorbent paper.