Winter Dress Up Relay
Before the game, gather some typical winter clothing items such as coats, scarves, mittens and beanies, making sure to collect two of each item. Gather the players in a common area and divide the group into two teams of equal numbers. Line up the teams a few feet away from each other and place a pile of winter clothes in front of each team. When you say "Go," the first player in each line puts on the clothes as fast as possible, then takes them off and hands them to the next player in line. This continues down the line until all of the players on one team finish, thereby winning the game.
Match the Snowflake
Prepare for this game from the website Party Shelf by first cutting out several paper snowflakes. You do this by first folding a piece of paper in half, then folding either end to create a triangle shape. Then, cut the paper up and unfold it. To play this game, you want to create two identical copies of each snowflake so there's one snowflake pair per player. Hide one copy of each snowflake pair around the play area and give the other copy to each player. The players then try to locate their identical snowflakes. The first player to correctly find his matching snowflake wins the game.
Tissue Snowball Fight
To play this game from the website Birthday in a Box, divide the players into two teams. Give each team a few rolls of toilet paper, which they can roll up to look like snowballs. Have both teams move to either end of the room, letting them use furniture such as desks or couches as their teams' bases. The teams then decide on their group names, such as "The Snowmen" or "Polar Bears." Have each player write the name of his team on the front of a piece of paper, and his opponent's name on the back. Attach the papers to the players' shirts using a safety pin or stapler.
When you say "Go," the teams start throwing the snowballs at each other. Whenever a player gets hit by a snowball, she has to join the opposing team and turn her paper over to show her new team's name. The game continues until all of the players belong to one team.