Snowman

Snowmen were sculptures fashioned in the shape of men. They were built of snow, but items were usually added as accessories.

Upon exiting his TARDIS, the Sixth Doctor found his coat draped over a snowman, with his umbrella under its arm. Some time later, both the Doctor and Frobisher skidded down a slope before colliding with this snowman. (DWM: Voyager)

In 1963, the Cold brought snowmen to life to serve as its army. (TN: Time and Relative)

The Demon Magician used his magic to bring to life a snowman. It grabbed John and Gillian; however, the First Doctor used a heat ray to melt the snowman, freeing his grandchildren. (TVC: A Christmas Story)

Snowy Boots, a doll resembling a snowman, was the most popular children's toy one Christmas season. (ST: Snowman in Manhattan)

The remains of a giant alien mosquito defeated by the First Doctor and Steven Taylor combined with snow and the DNA of two human boys, causing the two snowmen they had made with their mother to come to life. They were rescued from being melted by the sun by the Fifth Doctor, who took them to the North Pole. (ST: Do You Smell Carrots?)

The planet Reklon, by a coincidence of geology and atmospherics, resembled a huge snowman smoking a pipe and wearing a mauve hat. (NA: Sky Pirates!)

The Eleventh Doctor built a number of snowmen in Sardicktown. (DW: A Christmas Carol)

When the Council of Dead was planning to sell humans into slavery, they caused a massive snowstorm and set up snowmen as sentries. These snowmen could animate, fly and shoot beams out of their eyes to teleport people. (WC: Attack of the Snowmen)