I couldn't find a simple hanger for a cable online that I could stick to my wall, so I made one. It includes holes for 2x USB C type ends (Micro-usb also fits fine), and a big USB A slot. The C slots are slanted at an angle to avoid tension if plugged in. There is a flat back version if you want to use double-sided adhesive tape (3M works well for me), and one with a key hole slot to hang off of a nail/screw.
Note: You shouldn't need to scale it, for myself the USB's fit snuggly into the holes without damaging/scratching. You should not have to force it in. Scale it up very slightly if that is the case.
0.2mm Layer Width30% InfillSupports: No (Yes ONLY if you are printing the keyhole version, I suggest zig-zag, build plate touching only so you can snap it off from the outside easily).