My last bike was on 2011 Electra Glide Ultra Limited and I put on the tank emblems from a 2012 CVO Road Glide. I went to the dealership told them what I want and they ordered the parts.
My buddy lost a CVO medallion of his RG. He had to go to the dealership with his registration to order a new one. No over the phone I have a CVO ordering here. You had to prove the bike was a CVO. And, this little rear fender piece of plastic was $56. Hilarious.
Yeah, there's got to be a market for some cool, limited retro style tank badges. I wonder if the MoCo would ever license somebody to make them. Other than retro or CVO, there just isn't many options...