i used VHT Nite-Shades Translucent Black Lens Paint. It was 12 bucks at the store. I took them off, cleaned them, wiped them with an alcohol swab, hit them with 3 coats of paint (hold can about 1 foot away) let the coats dry 8 hours between coats (just to be sure that its dry) then i put them back on. Taking them off is 100x easier i suggest you do that rather than tape around them. When i was done my 3 coats i let them dry for 24 hours. then i hit them with 2 coats of turtle wax. put them back on and good to go.what do you use? did you remove the tail lights to paint them?