Use this OpenSCAD generator to create your own custom size box.
Features:
I have made a 2 cell box for crochet needles, and several 8 cell box for beads. I also made a small proof of concept box that will hold 9 printer nozzles. (Details for these boxes can be seen in the json file - which may be downloaded here but must be renamed to remove the “.txt” {Printables doesn't allow .json files} and placed in the same directory as you install my OpenSCAD file.)
The only limits are the size of your printer and your imagination.
The hinge area should be solid - in PrusaSlicer set "solid infill threshold area" to 1000mm (see my 3MF file).
The author marked this model as their own original creation.