Exactly, and I haven't had the chance to create that yet. Electricity as such isn't even widely used in my world... at least yet. I've had to read up on all of that, and that doesn't even get into electronics!

For right now, these are just shells. Actually, two shells. [He opens the Poké Ball wide, and once he does so, Sokka removes a shell that actually rested inside of it.]

Looking at the original, the inside was just finished metal, so the circuitry or whatever powers it has to be woven inside the Ball itself. And so... voila! Whatever I need to do can go between the two shells!