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