I asked the same question in "hardware, setup and repair" but not too many replies, so I wanna try my luck here. I want to relic some new hipshot tuners to match the worn down hardware of my 15 year old bass. I'm not trying to relic them to look like they've been on there for 30+ years, so I'd like to stay away from harsh chemicals. Plus they are a little hard to find in Japan. I've read about using vinegar to tarnish nickel hardware. I want to try that first since it's something cleaner for the environment, cheaper, and not as strong as other chemicals so the wear will be a lot slower and easier to manage. The question is should I take the tuners apart so I don't ruin the mechanics, or can I live them in one piece since vinegar isn't as harsh as muriatic acid or etchant solution?