You could try an experiment with a ployurethane dip.

You can buy a can of the stuff in the paint or hardware section of any lowe's, home depot ( or local hardware chain). It is used for coating ends of tools, or hard surfaces on lawn furniture etc that you want a plastic/rubber cusion or protection.

A urethane is still a plastic but the hardness of it is based on the Durometer. They can come as hard as Acetal/Delrin or as soft as rubber (a natural Plastic). If I remember correctly most pics are made of Nylon.

If you get a chance to experiment and it works I would be interested in finding out.