I made the angle grinder box to stop the mice from chewing through the cable on the grinder. I designed the pattern for the box using Fusion360 and the sheet metal module. The folding was done by hand with help from some wooden blocks and a hammer. The joints were silver soldered and some handles were riveted on. I styled it as an ammo box and added some stencilled lettering.
The whole thing was written up as a tutorial for HackSpace magazine, I don't think I'd have put quite so much effort in had it not been off for publication.