Plastic rings make the world go round. in Discussion Posted September 10, 2014 · Report reply 1. Krylon fusion is the cheapest option, about $7 at Walmart. Tamiya polycarbonate paint is supposed to be better. You can also make your own paint with the appropriate pigments and solvents. 2. Yes, see above. 3. After, use light coats and shake between applications to prevent the rings sticking. 4. Yes, but not for bronze. 5. Probably, but you should have no trouble painting them.