ear_clip
thingiverse
I required an adapter for my earbuds that I could rotate while they remained in place on my ear. I uploaded the project file for FreeCAD if anyone uses this software. Although it may not be perfectly structured, others can modify and tailor it to suit their specific needs.
Download Model from thingiverse
With this file you will be able to print ear_clip with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on ear_clip.