pep boys has tail light tape. you might even be able to find translucent black tape and cut out your own logo. i put yellow translucent tape on my 3rd brake light, but wasn't feeling it that much. but it fit perfectly, and there were no problems with spacing and putting the light back on.
yellow on red can be done amazingly tastefully. but one brake light on my red car looked ridiculous. i was trying to also do the sidemarkers, but i kept on getting air bubbles from the tape. and with the contours of the side marker, it was incredibly difficult to get a flat piece of ractangular tape to fit on there properly. and i was going to do the fogs yellow as well...butt **** it