Once installed, you can take photos of people and it zombifies them. I tried it out with a photo of my face, and am pleased with the results. (Probably would have looked better without a shirt).
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects