How much does circuit bender Gijs Gieskes love circuit boards? Enough to make them into puppets. A little paint, lots and lots of colored lights, and the ability to receive clock signal (MIDI sync) from LSDj, the homebrew music app for Game Boys, and you have a geeky, wonderful animated character who can flash along to your Game Boy beats:

Gijs conceived it as a way to add to his Game Boy performances.

This may be not safe for work. It depends on how what you think those flashing circles are. I do think someone in comments on Gijs’ site is reading way too much into the eyes, though.