Who can make me some black shrink tube with the white label lettering? I think I remember some guys here did that.

I bought a pretty good one about 2 years ago that you're welcome to use Will.
PM me an address and I'll ship it to you.

https://normanracingservices.com/

Get ahold of Ryan Norman, he might be able to make custom but also has some pre-made ones for certain wiring components already.

K & R sells a labeled package with enough to do at least three cars.

I would just buy the label maker myself. I’m sure you will find other uses for it.

I used a regular label maker to make the labels to go over the wires then covered them with clear shrink tube.

I even got some clear labels to make lettering for a switch box.