Novelty energy drink resembling the one Scout has in the game. I've seen this done with other game and cartoon shows. Why not Bonk?"

Mock up replicas made using standard sized energy drink cans.

Edit:

These are examples of other energy drinks based off TV and video games:

http://www.amazon.com/Simpsons-Duff-Energy-Drink-12/dp/B000RLGE16
http://www.amazon.com/Nintendo-Super-Mario-Power-Energy/dp/B000RLBDNU