I am a big nerd, and so I wanted to lug around dice day-to-day. This fits a full set of 20 mm dice with room to spare OR a few pencils and pens for quick access. Future versions may come with room for more or things like a built-in pencil sharpener, or you could save me the trouble and make it yourself :D

The design has some tight tolerances, so be ready to fine-tune fitment with some light sanding or lubrication. I found that the whole thing friction-fits together rather tightly, but I still designed for and installed six 12 mm diameter, 3 mm thick magnets off of Amazon. Just make sure that they are oriented correctly and pause the “Sleeve” print halfway in order to get the magnets in because otherwise the middle magnet will be a pain to install. They friction fit for me, but there's no shame in gluing.

I printed this with PLA, but I would recommend ABS for its post-processing or PETG because the hooks are less than tough, especially with the way layer lines work out.

Best of luck and enjoy! Please don't forget to show me how yours turns out!

P.S. This is the Amazon link to the Magnets I used. I've found a use for all the sizes, but buy something smaller if you want by all means.