Instructions
Turn on your PS3.
Scroll to the "PlayStation Network" icon on the main screen using your left joystick button. A drop-down menu will appear. Scroll down to "PlayStation Store" and press "X" to log in.
From the main menu, select "View All by Title." This will present you with an alphabetical list on the right. Scroll down and select "L." The next screen will show every PS3 game starting with "L" that provides downloadable content.
Find "LittleBigPlanet." Keep scrolling down the list until you see the game, and press "X" to select it. A menu will appear, listing all the game's available downloads by category.
Select "LittleBigPlanet Add-Ons." The packs are listed alphabetically.
Scroll down until you see "LittleBigPlanet Festive Goodies Pack." Press "X" to select it and you will be taken to the download screen.
Select the "Buy Now" button on the left. The next screen will show the item on a list. Press "X" to select it and begin the download. The length of time required for download depends on the speed of your Internet connection, but it can range from 10 to 20 minutes. Once downloaded, the items will appear in-game.