I don't know about pics of the 3rd brake light- you could always SEARCH, which is what you should do first anyways.
But..VinzDecals makes 3rd brake light covers in many different colors and fonts
and if i'm not mistaken you can also leave it blank, go for the COUGAR, or go with something entirely your own (within reason).
A forum community dedicated to New Edge Mercury Cougar owners and enthusiasts. Come join the discussion about troubleshooting, builds, ZETEC, maintenance, performance, modifications, classifieds, and more!