This idea was brewed in the mind of my beautiful wife, Helen. Take several different candy bars (Hershey, Kit-Kat, Snickers, etc.) and melt them into several different bowls. Give each teenager a piece of paper, pen and spoon. Make sure that each bowl is numbered, so that when they guess what kind of candy bar it is they will right it on the piece of paper. We gave a treat everyone that had all of the correct candy bars that were in the bowls.