A moustache where you can wrap your wired headphones / buds.
I had something similar a few years ago that was gifted to me, but can't find it anywhere! So decided to do my own version and added a extra hole to make it usable as a keychain.

PLA works, but TPU will be better.
I printed at 0.06 because i wanted a nice finish, but isn't mandatory.
Forgot to activate the ironing on Cura though. :/

Feel free to remix, change, whatever and share...
.step file and .f3d file included.