I posted this in response to request in another thread, just occurred to me I should probably post it here. When I replaced my factory vinyl shift boot with a leather one from Redline, I notice the top of the boot is basically fixed by a circlip pounded onto the shift lever. Now I'm all for simple solutions, but that's bordering on neanderthal...and I also notice the clip was wearing the boot through from the inside. I decided to whip up a quick 3D printed replacement. It could be refined but works fine as is. Attaches with a zip tie to snug the ring against the shift lever. Think I printed it in ABS or ASA.