The title Lego Star Wars' publisher LucasArts has let out some info regarding the customization of your characters i.e. Santa Claus. What you simply need is to follow the instructions step by step given below:

First of all at the Mos Eisley Cantina enter the two codes given; 1). CL4U5H and 2). TYH319 to get Santa's hat and red clothes with the help of first code and Santa's white beard with the help of second code.
Secondly you can go to the Character Customizer for creating real character via affixing a human head and clothing etc.
After that In the Extras menu, activate Disguise 3 and enter the character-based level of your choice in Free Play.
The steps are no doubt creative and the character customization has made the game more artistic in both the ways including gameplay and character customization.

Via: xboxic