Does anyone else remember a silly scam we had going for awhile that went like this: You would ask someone if they had a dime. If they gave you one, you passed them a piece of paper on which was written "You have just contributed a dime, To send a donkey to Palestine. So don't sit on your ass and whine. Go get yours like I got mine!" 

For some reason, that pops into my head now and then - anyone else remember this?  Or other silly stuff?