Im not really sure what you are trying to ask, but what my friend did for her birthday is we went to a mall to do a scavenger hunt kinda like what you are doing. There were 4 teams and they would each have a camera. then they would have to find 5 or 6 different items and do a funny pose or do something with it and take a picture. then the prizes are for whoever/whichever group finds all there items first wins, and then whoever/whichever group has the funniest ppictures also wins