The most unusual thing I've found is what appears to be a Rolex watch. No kidding. It was missing the crown, but otherwise, looked genuine and in good shape. It was still ticking when I picked it up and appeared to have a flywheel (non-quartz) movement.

I tried contacting Rolex to return it to the owner (it had a serial number on it), but they were uncooperative, so it still sits in a drawer somewhere.

I'd get it repaired and wear it, but I'm a $20 Casio kinda guy.