I'm holding a party in a couple months time, and the geeky side of me has decided to integrate the technology we oh so love.
I'll be running a data projector, which will be doing projection mapping on the dining table. This will all be done in Processing.
I'd also like to run some Arduino stuff with the guests (subtle games, possibly lighting gimmicks, etc.), but my imagination is running thin. What would be some cool little projects to make the guests say "wow"?
Give me you best ideas!