Here is my Jabra Elite 65t belt clip system. I use it to attached my Jabra earplugs charging case to my belt and always have them on me for a phone call of music.
It is composed by 3 pieces: The main body that holds the charging case, a locking system, and a stand. I use the locking system when I'm biking to be sure that the case doesn't open. The stand is there to keep your Jabra case on your desk while charging.
No need to use sand paper. Everything fits out of the box. :-)
A short video to illustrate: https://youtu.be/cUcofYoQiMs
I hope you'll enjoy it! :-) Don't hesitate to post your prints!!
P.S. If you like the design, please consider a small tip. It would help me buy PLA to test my designs :-)