Holds a full set of seven dice for tabletop gaming (plus room for at least a couple more), as well as a miniature. Plus, the lid works great for rolling dice!

The holes in the base and lid are sized to accept 6mmx2mm magnets (for all you Gridfinity folks with some lying around).

I printed mine with a .6mm nozzle in PLA with 10% infill, and it all seemed to work just fine for me. You may want more infill just for the feeling of the added weight, but strength doesn't seem to be an issue at 10%.

Things I may add:

• I'm planning on working on some designs for the lids to add a little personality to this thing - probably a generic D20 design, and then eventually designs for all the stock classes in 5E.
• I may also upload versions of both the lid and base with pegs protruding where the holes are to register into the holes on the other piece, for those who don't like fooling with magnets.

I'd love to see this remixed with other designs on the lid, or some sculpting on the vault itself to give it a little more of that ‘fantasy’ personality!