I had considered moleskin , Arthur , but the rest is only about a 1/32" thick piece of plastic like the stick-ons . I'd have to wrap it completely around the rest , and it probably wouldn't last very long . That's why I was considering a felt washer to reduce the vibration from the friction . It may also be the finish on my shafts which is a simulated woodgrain , my practice shafts have a smoother finish and don't squeak except occasionally .