Wall mount for ear muffs (and safety glasses). Also for headphones.

Print two of them. Be carefull when tightening screws. They can easily delaminate the layering if you tighten to much/to fast. You have to select the "grain" direction where you want the strength to be. I printed these laying down on their side like in the picture. Figured that is where the load will be. A few extra layers will probably not hurt either.

Model has a 55mm (2.165 inches) gap between the two protusions on the top. But of course you can scale to whatever you need. Measure your headgear before printing.

Tip: Mount these above shoulder height or in a spot where you don't accidentally ram into them with your shoulder.