What an intriguing concept. Nice stonework too. One of the reasons I admire the "Fursuit" sub-genre is because most the artists I know involved in the "Craft" are very highly talented and have other skills beyond sewing. I've always kicked around the idea of designing custom props and jewelry to go along with the costumes some of my associates wear, so I feel being able to sign an autograph with a custom pen matching the colors of a fursuit is a pretty "Groovy" idea.