Mythic: Yeah, while I'm familiar on an observer's level with some of them, like the ones various bending styles are based off of (Fire and Air, the others didn't seem Jack enough), I actually took notes so I can play his moves correctly, albeit with some Crouching Author Hidden Bullshit flare. I used wikipedia, found a giant list of martial arts, and started selecting the ones that felt right.
Natendo: I am so beyond mainstream I mobius (ugh no dotted o option) loop around that sucker.
Also, for Halloween, Prim should just have a large stuffed Ursa costume.
Speaking of which, for Red, lazy vampire getup or Phantom of the Opera?