Snowgies are Frozen Minifigures introduced in 2016.
The Snowgies are created as Elsa starts sneezing. The more Elsa sneezes, the more Snowgies appear. The Snowgies then scamper off to the castle courtyard, where they cause some mischief, most specifically targeting Anna's birthday cake. Luckily, Kristoff, Sven, and Olaf manage to subdue them by the time Anna and Elsa arrive and even have them perform a surprise for Anna. After a spectacular birthday party, the Snowgies get taken by Kristoff, Sven, and Olaf to live in the ice palace with Marshmallow.