Hexagonal Box for Facets Dice
I heard you like 3D printing, so here's a 3D printed dice box for your 3D printed dice!
I liked both sablebadger's dice and NemoKeine's box but they just don't fit together. I didn't end up using either files but I'm giving remix credit for the inspiration.
This design is a little taller than the standard dice box, but it accommodates a second d20 which I like for advantage/disadvantage rolls. The next largest holes are for the d10s. The oval is for the d4 and d6 is next to it. The last slots are for the d8 and d12.
The lid is 3mm thick, leaving plenty of space to "engrave" something up to 2mm thick. (Take it into Tinkercad for example, turn the engraving into a "hole" and group it with the lid.) Bridging over the "engraving" makes the texture a little rougher which contrasts with the surface; I like the effect.
The magnets can be fixed in the holes with just a touch of cyanoacrylate if needed.