Super Mario Question Box Piggy Bank

This is the Super Mario question block created as a Piggy Bank, to collect coins.  

This is NOT my design, but I saw that it's not on printables yet, and it was distributed under this Creative Commons license.

The original design is here: https://www.thingiverse.com/thing:4782780

There are a few other piggy banks similar to this, the reason I liked this one is because it has a cap at the bottom that screws easily in place.