I’d get a white cotton sheet and cut it to the length of your cable and width enough to make a tube with enough diameter so your cables can be inserted through it, then take it to a local dry cleaners and have them sew them into tubes for a few bucks. They’ll probably sound better too, ehem.
Or, alternatively you could just use some white heat shrink tubing made for electronics like this…
Either would likely be much cheaper than buying new cables, and you get to keep your current cables if you like them. Just a couple ideas FWIW.