I took a can of Plasti-Dip, thinned it with naphtha to the point it could be painted on in a rather thick coat and then carefully painted my chains with that stuff. I had to give them about three coats and it took a while but it sure kept them from rattling and knocking paint off. Then on the hook part I used some heat-shrink tubing and that kept them from rattling and made a nice secure hook.
