Quoted from BRW84:The Sorcerer I picked up a couple months ago actually came with the original pop bumpers caps. The problem is, they're super brittle, and little fragments keep falling off during normal gameplay. I realize that no one is making replacements for the original caps, and NOS caps are essentially unobtanium. I was wondering if anyone had recommendations for non-original pop bumpers caps that look good? I'd rather have different caps that look nice than original caps that look like they ran through a wood chipper.
I have been looking for the same, the one i picked up 2 caps are in good shape, third has a small cracked.. I might try to do this:
https://www.pinballshark.com/1985-williams-sorcerer-led-pop-bumper-mod/
Altho not sure if that will be too brilliant with the so so playfield on mine..