Actually, I came up with this idea about 25 years ago and spread the idea here at TB in about 2003. Also the idea of getting the curvature set by vising. I liked the idea that they were shock absorbent.
Blah, blah.
"generic glue" is a bad idea for obvious reasons. (I hope).
They need not come off..(unless you want them to)..ever, if you use the correct type of glue. (lookit clinks post).
And "ghetto bumpers!" is NOT my terminology.
Mine is, uh....fan belt bass bumpers.
Jeeze, you guys....do some TB search research. (Like clink kinda suggests).
If you wanna get all OCD or hide the fact that they ARE F-belts you can paint them flat black and make people think they might be ebony.
Just sayin'......