Instructions
Power on your Wii. Hit the "A" button to access the main menu. Aim your controller at the screen and choose the "Wii Shop Channel." Using the keyboard on the screen, search for "Club Penguins Game Day" to access any add-ons available for the game. You do not need to type the entire title, the closest matching titles will appear on the screen with each letter.
Aim the controller at the screen and press "A" when aiming at the game title.
Click the catalog page that appears on the screen. Scroll to the page with the yellow cheerleader. Click its beak and click the white pom poms that appear. Download the item and return to the game. You will then be able to use these in the game.