im not sure what youre saying ("rings").
ive got new ones too (my car hopefully will be out of paint next week:biggrin: ) and i remember (when i was dissasembling car for paint)the blow out clips were pop-rivited to the trim/moulding. im going to drill out the old riviets and reinstall the b/o clips with the same kind if riviets. then put trim and new rubbers back.
i think my body shop should have some,or Im going to try a hardware store.HTH.