I'd imagine that to sell them you'd have to package them up in a rectangular box, and build them to be automated. You'd need to find creative ways to keep the water-pouring systems hydrated. If you made a backing board with a ball-run inside it, along with a lot of ball lifts, you could build something that could repopulate it's balls back to their original places. It'd be as much or more work than designing the original though. And chemical reactions and hamsters would be right out.
I'd imagine that to sell them you'd have to package them up in a rectangular box, and build them to be automated. You'd need to find creative ways to keep the water-pouring systems hydrated. If you made a backing board with a ball-run inside it, along with a lot of ball lifts, you could build something that could repopulate it's balls back to their original places. It'd be as much or more work than designing the original though. And chemical reactions and hamsters would be right out.