Decided to make a simple but effective design for holding 14 DnD dice, and having a nice contained roll surface.I used spray glue and a felt square I bought from a hobby store for the roll surface, but you could leave it just 3D printed, would still roll fine, I just enjoyed the look and feel.Using the spray glue again, I glued a piece of 3mm rubber to the bottom(sheets of this can be bought on amazon or maybe a hardware store, I was lucky enough to have spare at work) this did two things. 1)