Want a new fountain pen ink, but can’t decide on the color? Why not make your own! That’s what Platinum Mixable Mix-Free Fountain Pen Ink allows you to do. There are 9 different colors available for you to play with, and I grabbed three of them - Aqua Blue, Cyclamen Pink, and Sunny Yellow - for you to mix and match with (here is a recipe chart.) One person will win this set of three inks, so read the rules below and enter away!