I needed a cable saver for new charger cables that I purchased. There is no shortage of designs available for them on here but none of them would fit the cables I bought. Decided it would also be a good project to work on improving my skills in Fusion360. This prints without supports in the provided orientation if you have decent part cooling (the inside is curved for this reason). It can also be printed standing up if you prefer but I found because of the size that orientation actually increases print time by 2-3 times.
Works with Otterbox phone case and most likely others as it sits back a bit from the end of the cable leaving plenty of room for the end to fit into the charger port. Covers enough of the cable that it wont bend and break at the end of the "head" of the cord. The cable sits in nicely but not so tight that you need to force the cable in or risk damaging the cable when removing it.
I may go back in and play with the file a bit to round over the top of the cable groove so the cable can't come out as easily but as it is it doesn't create any problems and serves its function of relieving strain.
May need a brim as the back section has a very slim surface contact area.