The fathom blue 69 B/M car that was formerly owned by LVCamaro used the red 427 portion of the 68 Impala "SS427" emblems, the numerals were cut away from the SS portion and "tweaked" to fit the contour of the fender. There were original photos of the car that showed these emblems were used from new. I believe I've seen other B/M cars that used this same method.
69 Baldwin Motion