You obviously want to dress up in clothes similar to Rookie, the public relations officer for the Elite Penguin Force (EPF) on Club Penguin. Right? You'll find tips on how to dress like him in this article.
Get the ordinary green color. This color can be found in the catalog for 20 coins.
Get the red propeller cap from the April Fool's party or unlock it with a code.
Get the red sunglasses. These aren't in the catalog right now though.