A dancing little foil.

This is just electrostatic levitation, nothing too special.
Just get some high voltage equipment (Flyback Transformer and an electronic fluorescent light ballast), some flat metal plates, and a tiny piece of tin foil shaped intricately. And you're good to go! Just be careful though, It'll shock the sh!t out of you and will probably blow up if wired improperly.
[This video was recorded a year ago btw]