I made 2 types of “Mushroom Kitty”.

It is reported that mushrooms have collected more cesium in their bodies than other plants since the Chernobyl accident. A “kitty” is a pool of money, like a piggy bank but especially one that many people donate for a designated purpose. 

A “Mushroom Kitty” continues to collect money. When it’s full, one smashes it and takes out the money inside.