Shure SM57 90 Degree Angle Mod
This is a simple 90° angle mod for Shure SM57 which screws right into the threads of the original casing. It prints as a single part, but you'll need to resolder the wires. The fit is pretty tight, especially on the XLR side.
I recomend printing with 0.12 mm layer height or finer to preserve the thread structure. I printed mine with PLA.
Also available on MakerWorld.