Canvas Back Duck is a Donald Duck short released 25 December 1953.
Donald and his nephews visit a carnival, and Donald can't resist proving his prowess at various circus games. Soon, Donald is goaded by a shifty barker into fighting "Pee Wee Pete," a brute significantly bigger than Donald. In spite of help from Huey, Dewey and Louie, the situation looks grim for Donald, until his fist accidentally connects with Pete's jaw, which crumbles. Donald wins the prize money and exits the carnival triumphantly with his nephews.