Quiet hatch rattle

What can I do to quiet the hatch rattle?
What are the different things I can get for it and where can I get them from?

The first thing I did was electrical tapeing or ductaping the ring which is connected to the upper hatch. The metal ring was rattling. Ever since ductaping it I haven't had a problem with it. The other thing was messing with the 2 rubber stops on the hatch lid.

Travis