Hey, I was wondering if anyone would know what kinda metal the stingray bridge mutes are made out of. I plan to make some my own for my P bass for the ol' foam under the bridge trick. I really like the idea of the stingray mutes (ie the new classic series or any of the older stingray models). Seems to be a a screw, some glue, some foam, and some kinda of metal that well bend without snapping (excuse my lack of metal knowledge) Anyone tried this? got types of metal suggestions?