DIY stamps - looks pretty easy. use a wine cork and I would use a piece of the craft foam that is easy to cut. Then glue it onto the cork. This one it looks like they use the precut wood shapes at the craft store.
Jello Worms - Tie a bunch of straws together. pur gelatin into straws. let it sit over night in the fridge. take the straws and let gelatin slide out AND THERE YOU GO! You have jello worms! How to Eat Fried Worms. (Maybe jello shot worms.