Above is ASIMO. You may have seen her on the news. She is a robot that moves kind of like a human. It kind of troubled me a bit. When she walked toward us I kept thinking, "Must kill humanoid!"
She is kicking a ball in the photo above. It is just a regular ball, it just looks like a glowing ball in the picture.
This may not be the best picture to show it, but the above little vehicle kind of floats above that track. It works on magnets. Those kids are controlling it.
More fun with magnets! You can control these little hover-craft like things.