[ooc: Definitely up for handwaving; trying to understand video game technology... Ahahaha. And maybe they can make some progress whenever Sokka's not too busy hunting in the past.]

It comes down to the power source. [He catches on to what Sokka's saying with the way he trails off, and he nods once in agreement.] I could create something similar that functions off of symbology, but that's not exactly helpful when you're looking for something comparable to your own world's technology.

[He frowns slightly, looking down at his satchel as he remembers what Red had given him earlier. His vocal silence is replaced by the shuffling of things in his bag as he looks around to produce another ball, which he holds out to Sokka.]

I was told they can even improve on effectiveness and such. Somehow. That's called an ultra ball.

[He shrugs. He's a scientist, not an outright engineer.]