Apple USB-C to 3.5mm Keychain

thingiverse

My requirements were to be as compact as possible while being secure. The 3.5 plug type just didn't fit snugly on the well, despite its small size which I really appreciated. The other ones that provided a secure hold were either too wide or too thick. I did print with supports for the nub in mind. Keep this in mind: you'll need an exacto or another extremely tiny tool to remove the support. I sliced with Slic3r, so if you're using Cura, you may want to create custom support.