Model Factory Hiro makes a great set of 3D emblem stickers. They are much better than decals as they replicate the actual domed look of the real badges. Also, they are fairly inexpensive. I have many of them in stock here:
http://www.racingminiatures.com/Prod...geID=&CatID=46
Regards,
Ron
Racing Miniatures
www.racingminiatures.com