Aluminium Balltops?

I know aluminium batttops are on sale on Lizard Licks right now. I’m wondering about where I can get aluminium balltops for Sanwa JLFs since I’m fairly sure I’ve seen them somewhere on various people’s modded sticks. Sorry to start a new thread about this but I did have a good look around on the internet first. Any help in finding these would be much appreciated as I’m mildly allergic to the plastic balltops and it can make extended play a pain.

Only place to get.

Thank you very much. You’ve answered 2 of my questions now!

What was your other one?