To keep my small parts from "sproinging" out of the tweezers jaws never-to-be-seen-again, I coat the tips with one or two coats of liquid electrical tape. Expensive? Yes, because you buy a small can for about $5.00 which will last for 100 years, and you only need one or two coats per tweezer. Just offer to share with your club.
Dennis in Long Beach, CA