I got this from Amazon years ago with the diameter I needed to fix 3 Instrument cables, 1 power cord and 1 or 2 additional cables.
https://a.co/d/2d0fSbg
Feet all the cables in there and then I used heart shrink on the ends of the snake to keep the tubing from fraying and coming apart.
I'll put a pic up thursday when I am at the studio.
For the ends, on the amp side I just used white labels with black font to write where they 1/4" plugs go into.
On the floor side, because I use a Fractal FX8, I used the coloured replacement nuts from
this link that come with matching colour stickers so I can quickly plug the correct 1/4" plugs into the right inputs/outputs.
Hope that helps.
Cheers