Pikachu dance floor

https://youtu.be/BNEBt651IWM
Pikachu can be found here:
https://www.thingiverse.com/thing:406567
They look funny and really like to dance (if you put a neodymium magnet in them).
A 9 volt battery goes into the box and drives a mini geared DC motor. The magnet in the gear wheels has a diameter of 10 mm and a thickness of 1mm or more.