While eBay may have some interesting stuff for sale right now, I think it's being outdone by the Paris Review Auction.
Check it out... you can have lunch at the Playboy Mansion, a Knicks game with the Basketball Diaries dude, and my personal favorite, get your voicemail message recorded by Alec Baldwin.
They're on the pricey side. But wouldn't it be worth it all just to have your voicemail say, "What's my name? Fuck you, that's my name. 'Cause you drove a Hyundai to get here tonight and I drove an eighty thousand dollar BMW, that's my name. Leave a message at the beep."