http://www.akihabaranews.com/news-11...+as+mouse.html

I came over this one.

Use your fingers as mouse

This is THE mouse for geeks that have been raised with an amiga. The EEM-GTMS-300BK is in fact the optical (800dpi) module of a mouse that is attached to one of your fingers and that's it. If you want to and if you wash your hands on a regular basis, you can even "write" with your finger on the screen of your PC.