Here's a hero I made today with the Martial Arts: Unarmed set. Guess who he looks like.

I always did this for my characters in City Of Heroes/Villians. Unfortunately, the costume generator in World Of Warcraft was not good enough to do a Santa costume.
Aside from battling Black Harlequin and Clarence, you can also open presents to get some interesting items.
When you open these presents you could get some goodies or you will have to battle evil toys to get the good stuff.