I was rummaging about in the garage today when i happened to find a decent sized left over strip of 3M Di-noc carbon film... So i whizzed off the mirror covers and chucked a bit on each one... (that saved me the job of re-painting them because of 180,000 miles worth of stonechips)
My car is Sea grey, and the carbon works pretty well with that colour i think!
[img]http://i25.photobucket.com/albums/c97/joannelf/DSC00248-1.jpg[/img]