This game is literally an icebreaker! It requires a bit of preparation however...
For each team, you need a frozen t-shirt. Submerge the shirts in a tray or container full of water overnight.
Tell the group they'll be playing an icebreaker game, then bring out the t-shirts. Give one to each team, and it's the first team to have a team member put on the t-shirt. Depending on how frozen the shirts are, it can take a while for them to bash out the ice. Let them be creative in the way they thaw it out (pouring water over it works well!)
The team to come back with someone wearing the t-shirt is the winner