Reddit mentions of Amazing and Wonderful Mind Machines You Can Build

I remember those pinwheels from the book Mind Machines You Can Build and, contrary to what /u/Pkeod below said about air currents and heat differentials, they can work even if you put them under a glass dome like this, which kinda rules out the air currents and heat differentials thing, especially if the pinwheel spins the direction you "tell" it to every time.

A few (~10) years back it was really easy to find resources on Psi orbs/balls, and if you could dig around on Google to find them I think that would be a good place to start.

"Psi Wheels" originally got me interested in the topic, although most of the time the demonstrations could have been dismissed as being faked or someone just blowing on them to make them spin -> https://www.youtube.com/watch?v=CUNGnlaz0Eo

Then people started posting videos of themselves spinning psi wheels under glass -> https://www.youtube.com/watch?v=PhkHMf46rqk

Even if those videos were being faked, I'd assume that it is still a good place to start because only you can confirm to yourself if it works or not.

Edit: I also wanted to add, this book would be a good resource to look into if you're interested in manipulating things with your mind: http://www.amazon.com/Mind-Machines-You-Can-Build/dp/1560870753