When I found and saved this shot, I had no idea that the big plastic ball Zorb was actually something that came out a few years ago and is now a
fully conceived and marketed product and has been spotted widely elsewhere. But it's still impressive that you can now run around in your very own hamster ball. (I haven't seen it so maybe you haven't seen it?)
The hamster ball for hamsters came out when I was a youngster... so I guess it took exactly one generation to go from hamster ball for hamsters, to hamster ball for humans.