The original case for my 1/4" Craftsman sockets fell apart. So I found a Pelican-like case on Thingiverse and designed an insert to hold all of the standard and metric socket and also leave room for all the adapters, extensions, handles and ratchet. My insert fits snugly into the case.
The Pelican case itself is a design I found on Thingiverse by Tekcor17: https://www.thingiverse.com/thing:4661977 It prints in several pieces and works very well.
You can print it in pretty much any filament, but I have attached the gcode to print the insert in PETG including a stop just before printing the sizes so you can manually change filament and get contrasting lettering.
The author marked this model as their own original creation.