Ever have a lan cable where the plastic lock mechanism is broken off and it periodically wiggles free? I have a solution for you. I was designing a 3D printed fix when I noticed a paper clip in front of me. =) Problem solved.
Step 1: Attach the Paper Clip to the Cable.
The slide on quite easily. I do not have the size of the clips, but you will know when you have some that fit. If you had the plastic coated ones they would protect the cable from wear as well.
Step 2: Pick Your Attachment Strap
I have a ton of these tiny cords and they worked super slick. I also attached one with rubber bands which was more difficult, but worked fine. Free is always one of my favorite fixes. =)
Simple as that, cable fixed.