I dunno if anyone has posted about this before, but I've been playing with mine again lately.
Has anyone else got one? Its a little ball with a few answers "Yes", "No", "Unknown" and "Sometimes" on it. It can almost always guess what you are thinking about just from asking 20 questions (and if it gets it wrong, it asks 5 more).
http://www.20q.net/
They even have specific ones (Simpsons, Musicians, etc) that are pretty fun. Theres an online one at that site too.
I got mine when I was waiting in line for my Wii for 16 hours. My friend Tyler tried to get it to say "poop" for the longest time, and it finally did. He told everyone around him "ITS POOP!" lol. It was pretty funny, but it was after about 10 hours haha.





