A holder for screwdrivers in Gridfinity boxes. Flat for easy storage, holes on lower holder so the screwdrivers don't fall out if you tilt the box up. Easy removal - just tip on the bottom of the screwdriver; the hole is angled so the screwdriver will pop up.

The STL file is the bin from the picture, but it is easy to configure it to your own needs: Get the “gridfinity rebuilt in openscad” files from github, drop the scad files in there. Modify the parameters in the code and render your custom STL! Please check the screwdriver dimensions in the OpenSCAD file before printing - there are tons of variants out there, all looking “the same”!