What an awesome idea. I know one of my daughters friends had a scavenger hunt for her birthday and the kids had a blast- get a pencil, get a penny with the year she was born on it, a piece of candy or chewing gum, get the front page of a paper, get something with a states name on it, but not the state you live in etc.....Only one object per house/person. For senior slave day, they made the freshman dress up in some pretty wierd outfits and they had to pump gas for 5 cars, then they had to wash the windows of 5 cars. They got some pretty wierd looks but folks did go along with them. When she looks back on it now, she laughs and says they had so much fun. I think I may borrow the idea (if that is o.k) and do the same thing. Don't know if I can wait until her birthday this fall though!
Let us know how it turns out.