Hello,
I designed simple heaphones holder. There are 2 versions. First (screw version) is for every desk and you can screw it with simple screw. Second version (Ikea Bekant version) is for Ikea Bekant desk, (https://www.ikea.com/cz/en/p/bekant-underframe-for-table-top-black-30252906/#content) there are connecting pins for the underdesk cable net. You can use their mounting system to hold my headpones holder.
There is clip on the bottom of holder, you can put there cable or something like that (for example foto).
The author marked this model as their own original creation.