I grew up on the cheap and cheesy B-grade horror movies. To be honest, if they were really being graded, they were probably much lower than a B grade. I believe though that the B referred to the fact that they were (low) budget movies. Night of the Living Dead, Invasion of the Body Snatchers, The Crawling Hand, were all a part of a fun weekend’s entertainment. When I start drawing giant stuffed bunnies, they just appear ominous.