Today, an amazing new play was released on Club Penguin for the Club Penguin Holiday Party 2011. It has 2 new pages in the Costume Trunk, along with some cheats. To get started, open your map and go to Plaza. Next, waddle inside the Stage and click on the Costume Trunk.
Click on the circle in the window to get the option to buy the Balcony Background. That is the only cheat in the A Humbug Holiday section of the Costume Trunk. Be sure to check out the rest of the play, it really looks great!