Sarge
Here's an old one of mine from last year that's come back again. It's one of the rare ones that I even remember getting. I was working for the Fed Gov't, and was among a bunch of strikers picketing downtown. I went for a coffee break and got this bill as change.
http://www.cdn-money.com/cdnmoney/servlet/cmtViewBill?ID=21525
Looks like it moved about half a km since it was last hit. Too bad they didn't include any comments or condition.