Craft projects to make using Gel Pens

A gel pen uses ink in which pigment is suspended in a water-based gel. Because the ink is thick and opaque, it shows up more clearly on dark or slick surfaces than the typical inks used in ballpoint or felt tip pens. Gel pens can be used for many types of writing and illustration. The general design of a gel pen is similar to that of a regular rollerball pen, with a barrel containing the writin... From Wikipedia