My DS just had his talent show and I had the same dilemma...someone suggested that I make up a candy bag or the like, and it was a big hit! He had done a Star Wars dance w/another boy, so I found a Darth Vader mylar balloon and light saber candy, bubble gum tape, just things that are their favorites. I also attached a "awesome dancer" ribbon (from dollar store) to each of their bags. I also had a juice bag in their and boy did they drink that down fast!
Enjoy his performance!
Pam