A simple box for holding 8 20mm dice.
Made in OpenSCAD, so it is quite easy to modify this model to suit your needs by changing the base variables at the top of each file:
With a border of 2.5 mm (which is the default), printing with 3 perimeters is recommended (at least in the top few layers, to make it look nice).
It is recommended to perform a color change on the cover to make the design pop out. See the cover's note for more info on how to print it properly.
The author hasn't provided the model origin yet.