Stupid Dragon
A hand painted limited edition produced by McKimson Productions. 
(Regular edition of 500 / Studio Proofs 2)
'Knighty Knight Bugs' (1958), directed by Oscar-winner Friz Freleng. It is famous for being the only Bugs Bunny cartoon to win an Academy Award for Best Animated Short Film.
The Scene:
Yosemite Sam (as the Black Knight) stands trapped in a room of explosives with his perpetually cold-ridden, sneezing dragon, shouting the iconic line: "Don't sneeze, ya stupid dragon, or you'll blow us to the moon!"