Stern Coin Box Insert

I want to start using tokens, but I don't want to have to take the whole coin box out every time. This small caddy can fit into the coin box slots on modern Stern machines. I don't have coin boxes for my Williams and Gottlieb, but I imagine that it does not fit those. I wanted to make it bigger, but I've got lots of spare parts in my coin boxes and I did not want to chance it getting hung up on the coin door parts.

It prints upright so it will need supports.