Hey there!

This is a project I made as part of a set of weighted dice. the chamber inside is meant to fit two British 5p coins but it looks like it will also work with two American dimes (10 cent coins) as well as 1 or 2 cent European coins (2 cents is a tight fit)

Two recommendations:

1. Add a pause in your slicer to the Gcode at the layer before the roof of the capsule inside is printed. This is so you can pause the print to add the coins.
2. Use the coin support blocker to block supports from generating inside of the spot for the coins. This is more for the D20 I made but you can use it here as well.

Anyways, in no way do I condone cheating. I just find it kind of funny the ability to roll three sixes in a row on command. I found the dice lands sixes most often if I roll them with a bit of back spin. Anyway, go have some fun! i'll be uploading a D20 some time soon as well.