The glitter inside is pretty ridiculous, but I love the holographic tape! Silkspike Dolls Picture Tutorial - Making Cinderella's glass slippers for a Panto stage prop - inspired by a You Tube video by Mark Montano.
Celebrate the grad! Make clear balloons more festive (and less boring) with confetti! Sprinkle small amounts of tissue-paper confetti through the mouth of the thing, then blow it up and shake to dispense it around.