If I had to make a short list of favorite fountain pen accessories, the Col-o-ring would be at or near the top. It is so good, and so fun! Even if you don’t have hundreds of inks to play around with, keeping a few swabs handy to match up and compare with is a great idea. Ana Reinert - Chair of The Desk, Maker of Things, First of Her Name - knocked it out of the park with this limited edition version for the Chicago Pen Show, and I have one to give away to you. Read the rules below and enter away!