During the Club Penguin Games you can cheer for either the red or blue team.

The red team face paint is in the Coffee Shop:

If you wave (W key on keyboard) when you have nothing else on you get to hold up a sign saying “go red”. Or if you really have to you can always support blue…in the pizza parlour:

And if you are a member you can go down to the football field at the Snow Fort:

You can kick the ball around but there are no hidden items.