Make an Electrophoresis Gel
Electrophoresis is the term used for the study of the way charged particles move through a medium when subjected to an electrical field. The particles will travel through the gel at different speeds, depending on the charge carried by the particle and the size of the particle that must push through the somewhat restrictive medium.
Did you run out of glitter glue for your project? Or were you unable to find the color you needed? Whatever your predicament is, you can always make your own glitter glue.