I love designing things and making them real.
My mother bought a vintage sewing maching that was missing a front plate. She received an excellent deal on the machine because of the missing part. Within an hour I was able to 3d print the plate and slide it into place. Three revisions and it was perfect.
I have designed and printed wall mounts for AR-15s, shotguns, pistols, and ham radios. Created specialized cases for orange pi zeros with relay mounts and gpio access ports.
I have designed and sewn a messenger bag that is perfect as a Get Home Bag. A range apron is in the works that will allow you to dump magazines into a massive pocket.
Anything that I design that seems useful enough to share will get an article below. The objective is to share the patterns and "how to" instructions including FreeCAD files and STL files.