I like the streamer idea Squires Squires Squires Squires Brooke and Bruinenberg Bruinenberg Bruinenberg Bruinenberg Scott, so would a glow stick chandelier! If we have a glow in the dark theme, we should do this!
Glow in the dark water balloons---- A water balloon fight during summer would not be an unwelcome event! But, a water balloon fight in the dark on a hot summers night would be fun and would cool you down.
DIY cupcake stands - so colorful! Get plastic wine glasses from the dollar store, fill the bottom with M&M's (or color coordinating candies) and put the cupcakes on top. I have glass sundae cups I could use. Fun way to serve cupcakes.