These Creative Juices: Superhero Birthday Party! Activity: kryptonite diffusing. Wadded up foil, painted green, sprinkle with glitter. Using claw toy, get them into the "diffuser" (giant pot)... (could get pricy, but buy one for every kid and have a race to see who can pick up the most??? OR make magnetic fishing poles out of sticks/string/magnets and stick a paper clip to the foil wad???)