I think it was Easter of '78, and my neighbors had an Easter Egg hunt for their kids (1 boy and 3 girls). The mom said "The big prize is one of the large eggs and there's a ten dollar bill inside". The kids looked for about 20 minutes and finally the boy found the large egg. He waved it around in the air and gloated over his victory. He walked up to where the rest of the family was and finally opened the egg to get his prize. Turns out it was Monopoly money. He didn't take it very well...