So a while ago I got a new (semi)expensive headset and wanted a place to hang it when not in use. The best place i could think of was the edge of my desk. I modeled this up as a newbie in Fusion360 and it turned out great.

Its designed for Beyerdynamic MMX-300 but will likely fit a lot of other models/brand. It screws in on the bottom of the desk so holes want be visible if later removed.

Its an easy print on any machine with any non-flexible filament.