 In the 1995 short "The Spirit of Christmas" and "South Park"s debut episode, "Cartman Gets an Anal Probe", Wendy is composed of construction paper and animated through the use of stop motion.Starting with "Weight Gain 4000" onwards, she is animated via computer software, though her appearance is portrayed to give the impression that the show still uses its construction paper technique.In tradition of the show's animation style, Wendy is composed of simple geometrical shapes and colors, and is not offered the same free range associated with most hand-drawn characters; her character is typically shown from one angle and animated in an intentionally crude fashion.