The Snowmanatron is the holiday short from the Cracking Contraptions series.
To try to win the annual "Snowman Competition", Gromit builds a snow sculpture based on Rodin's "The Thinker". Wallace then pulls up in the Snomanatron. The machine creates a snowman, but when the door opens the machine's snowman destroys Gromit's more artistic snowman. Wallace's entry turns out to be rather crude and Gromit, feeling flat, heads back in. The door slam makes snow fall from the roof landing on Wallace, turning him into a snowman. Having heard the noise but not Wallace who is calling him for help inside the snowman, Gromit emerges from the house again. Discovering what he thinks is a better snowman, he adds a carrot nose and eyes. Gromit wins the competition and was featured in the news while Wallace slowly defrosts from his frozen state.