Snowballs are used to unlock Event Buildings at Giant Snow Fort and can be obtained in the following ways:

- Making Consuela Clean Christmas Tree

- Making Baseball Player Cleveland Swing at Christmas Ornaments

- Making Carter Cancel Christmas Bonuses

- Making Jerome Mix Holiday Cocktails

- Making Mort Celebrate Hanukkah

- Making Quagmire Ask Moms to Sit on Santa's Lap

- Making Jerome Decorate the Drunken Clam

- Making Connie Take Holiday Selfies

- Making Lois Making Lois Cut Down a Christmas Tree

- Making Maid Stewie Dust the Chimney

- Making Stewie Make a Christmas List

- Making Cleveland Buy Himself Christmas Presents

- Making Peter Resist Change

- Making Snowman Peter Stand on the Lawn

- Making Christmas Carriage Joe Run a Stop Sign

- Making Gingerbread Stewie Build a Gingerbread House

- Making Detective Cleveland Investigate Who Ran Over Grandma

- Making Christmas Carriage Joe Run a Stop Sign

- Making Gingerbread Stewie Lose His Balance

- From Snowball Shrines