I prefer "clown nose on a pole."---
But it is frustrating when people lose sight of an idea because of improper terminology or semantics. It's about the big picture. Or in this case the little picture - the one in example C in post #1. I think this is more applicable than the flat surface "blocking" for the round shape. Our cars are closer to "boxy" as in the first plate, than "round" or "spherical" as in the 2nd plate.
I am going to see if I can figure out some attachment scheme to try my mirror "blocking" idea.