I’ve only read this once, but I use a small section of foam pipe insulator, Like this . I cut off about 1.5" and also cut through it vertically once such that the small section is shaped like a "C" from top view. I can put it on and take it off very quickly this way. I find it very comfortable, but more so time efficient.
I got mine at Ace hardware and it wasn’t too expensive; I can’t remember the price ($6 tops, probably less). 2.5" OD, 1.75" ID. The foam itself is .375". This size fits inside of a medium cable clamp just perfectly. Oh yeah, it was about 5’ long, so that’s good for about 40 1.5" sections, tons! After a couple sessions, a little valley in the foam is created where the cable clamp sits.
The only downsides I can think of is that the cable clamp must sit in the middle to foam, thus the clamp cannot sit at the very base of the penis.
Below is a picture of what I use.
Oct 2006: BPEL: 7.75" NBPEL: 7.00" EG: 5.125"
Goal: 17+ cubic inches of volume, someday, currently inactive