what "who am I?" or "celebrity head"

Put a post-it note on your forehead with somebody famous on it, you can only ask yes & no questions to work out who you are. You could theme it.

We've done it with Brat Pack movies of the 80s (both actors and characters).

We've got a PS2 (about to get a PS3) and we love singstar and the dancemat games (exercise while having fun), so is the eyetoy games (which is always a hit at dinner parties when everybody has had a few - watching grown men attempt to "wash windows" with arms flailing is always highly amusing). With PS3 being released, maybe your local EB games or even trading post/ebay will have a cheap PS2 going. I know our personal message centre at work (where people post things for sale) has had a few for sale lately (with games).