At my parties we always make our own sundaes instead of cake. You will need:  -crushed candy bars(we use kit-kat's and butterfingers) -crushed cookies(nobody can go wrong with oreos) -candy pieces(gummy bears and MnM's seem to be popular) -chocolate,caramel, or strawberry sauce(if you're wierd like my friends you may prefer peanut butter(yuck!) -vanilla ice cream  Just lay out the supplies and everyone makes their own creations.