Simple modifiable headphone holder

I decided to try my hand at making my own headphone holder. It turned out so well I thought I would upload it here. Hopefully I made it easy to modify it to suit your own needs.

My desk thickness is 18.5mm. Setting the thickness in the design 1.25mm thicker gave me about .25mm of extra space. When I printed mine, I wished I had a little more space for the headphones to make it easier to remove without bringing the holder with it when pulling them out, so I included a few more mm before I uploaded.