Under shelf/desk bracket for modular headphone holder

Just a simple bracket so you can mount [amarand](https://www.thingiverse.com/amarand)'s headphone holder under a shelf or desk with two screws. I didn't want a hook on top of my shelf since they come off too easily. I've included the stl for the headphone holder itself. The original can be found here: [https://www.thingiverse.com/thing:2373387](https://www.thingiverse.com/thing:2373387)

In case you don't have a low profile bit holder/ratchet you need to screw the bracket in place first, befor