Avatar: The Last Airbender arms, legs, abs.

Do just one body part (arms, legs, or abs), or all three if you're ambitious.

"My cabbages!", "Yip yip!", Momo
          .....30 second plank
          .....15 backward leg lifts each side
          .....20 bicycles

Sokka flirts, talks about food, or you see/hear about his boomerang
          .....15 lateral raises
          .....15 forward leg lifts each side
          .....10 reverse crunches

Disguise, combo animals, shirtlessness
          .....15 shoulder presses
          .....20 sumo squats
          .....20 Russian twists

Zuko mentions honor, Zuko gets his butt handed to him
          .....15 tricep pushups
          .....30 second wall sit
          .....20 oblique/side crunches each side

Bending
          .....20 bicep curls
          .....30 calf raises
          .....20 crunches

Avatar State, Uncle Iroh, Katara is the voice of reason
          .....10 push ups
          .....20 jumping jacks
          .....10 straight leg lifts

 

Also, if you like the Avatar series, check out my themed scarves! Airbending, Firebending, Waterbending, and Earthbending. :)