Candy canes, fruit, animals, snowmen, angels and snowflake images are also popular choices. Calvin often creates horrendous/dark humor scenes with his snowmen and other snow sculptures. They land in a snow-covered forest where they join a party of snowmen. Memory worms were first introduced in the 2012 Christmas special, "The Snowmen". This effect would later be accomplished in the 2012 Christmas special, "The Snowmen". A third console room design was unveiled in the 2012 Christmas special "The Snowmen". Enemies include aliens, mutant rodents, and snowmen. He called their return in "The Snowmen" wonderful, calling Strax "scene-stealingly adorable". They discover some giant snowmen, which come to life when walking through them. Elsa sneezes again and finally sees more tiny snowmen that she produced. The story also serves as a prequel to "The Abominable Snowmen". As a result, the novelisation of "The Abominable Snowmen" was identified as book number 1. In addition to snowmen, other things can be produced. She also used the toxic water from Lake Wannaweep to make the snowmen. The snowmen attacked Summer Gale while she is on the air.