A simple cable hanger. Just cut a length of 3mm (01. inch) thick string as required (I used approx 30cm or 1ft in the pictures shown), thread it through the holes and knot the ends. Bottom end is tapered to make removal easier.

There's a blank area between the string and hanger for labelling.

Loop the string around the cable, then the printed hanger through the looped end of the string.