socket holders
Holders for sockets. OpenSCAD source is included. Script is parameterized and highly customizable, if you wish to edit the OpenSCAD model.
There is enough slop that some of my pieces that are not Stanley will fit, but that is not a universal truth.
In general, I store them with the wrench side down, but I have the cap with custom nut size pegs which makes it easier to make sure that all pieces are in the correct slot, and they can be moved around with less chance of spillage.