Acoustic Wall Mount Washer

Very simple washer to mount an acoustic foam square to the wall. The hardware store wanted $0.30 per washer and they weren't big enough, so I made my own for somewhere around 1/15th the price :)

These are 50mm overall width, and has a filleted center to not break when using a drywall screw (I used Breathe-3DP filament which is an impact modified PLA). For re-positionability, I mounted a small strip of pegboard with spray adhesive to the top of each square for a little more "grip" rather than just the drywall.

STL and Fusion 360 files attached.