In 1969 Rankin-Bass, the stop-motion animation studio behind classic holiday specials like Rudolph the Red-Nosed Reindeer and A Year Without a Santa Claus, released their very first theatrical feature film. The stop-motion feature was called Mad Monster Party, and featured Boris Karloff as the voice of Baron Frankenstein. The Baron is planning to retire and has invited all his old colleagues - the Invisible Man, the Creature from the Black Lagoon, the Wolf-Man and so forth - to his castle for a party where he intends to announce his successor.
In the film, Phyllis Diller provides the voice of the Monster's Mate (essentially the Bride of Frankenstein) and her husband is called Fang. Fang is clearly modeled after Karloff's original Universal Pictures makeup, and even looks a little bit like old Boris.
This giant papier-mache mask, while not intended as an exact replica, is inspired by the Fang puppet from Mad Monster Party.