Take cover! The mice bundled up and are having an epic snowball fight but it’s all in good fun! And when they’ve run out of snowballs they can work on the cutest "snowmouse" together! approximate sizes: snowmouse: 1 1/8 x 1 3/4 inch; snow fort: 1 3/4 x 3/4 inch; mouse covering up: 3/4 x 1 inch; "happy winter": 2 3/4 x 1/4 inch. Coordinating Lawn Cuts: Snowball Fight Lawn Cuts.