Have you heard of these gadgets called powerballs?

They're kind of a gyro-powered toy that you work into a spin with your wrists, and you have to keep spinning it to see how fast you can get it. It's also supposed to be good for the connective tissue in your wrists, helping you avoid Carpal Tunnel Syndrome. I've got one, and it was fun for about 2 hours, then it got old, and I hardly use it anymore. But here's a video of some guy who thinks he's the world champion at it, and he looks pretty funny trying to get it to top speed.
It really looks like he's practicing at getting good at something else.......
Video

They're kind of a gyro-powered toy that you work into a spin with your wrists, and you have to keep spinning it to see how fast you can get it. It's also supposed to be good for the connective tissue in your wrists, helping you avoid Carpal Tunnel Syndrome. I've got one, and it was fun for about 2 hours, then it got old, and I hardly use it anymore. But here's a video of some guy who thinks he's the world champion at it, and he looks pretty funny trying to get it to top speed.
It really looks like he's practicing at getting good at something else.......
Video