Eco friendly balancing game

My kids collect plastic caps of the bottles we used , so I thought I create a simple balancing game where we can finally use these caps for something. You are free to use any game piece you find at home, or whatever fits. 

Print as oriented. 15% infill, PLA, PETG.

Print the plate and the center holder. There is a small dent on the plate to easier center it on the holder before starting the game. 

Playing modes:

Competition mode: Each player puts one cap at a time using 1 hand only. When some pieces fall off, the player needs to put them back. If the whole plate falls down, the player looses. 

Cooperation mode: Try to build together as big a stack as possible by counting the caps. Try to break your own record. 

Have fun. Post a photo if you printed it.