Crystals are used to unlock Event Buildings at Winter Runway and can be obtained in the following ways:

- Making Carter Poke the Fireplace

- Making Jerome Save On the Electricity Bill

- Making Tom Tucker Report On the Weather

- Making Quagmire Do Warm Up Thrusts

- Making Jerome Serve Hot Toddies

- Making Mayor West Deny Global Warming

- Making Connie Wear UGG Boots

- Making Rambo Lois Stock Some Firepower

- Making The Green Witch Steal Some Coats

- Making Woody Get Close to the Fire

- Making Gamer Bonnie Fire Up the Competition

- Making QuagJoePeteLand Adjust Temperature Levels

- Making Steel Throne Dragon Breathe Fire

- Making Winter Chris Smell His Beanie

- Making Winter Peter Ice Skate

- Making Winter Peter Try On Twenty Sweaters

- Making Winter Peter Lick a Flag Pole

- From Crystal Shrines