what is the special wheel used to hypnotize a person?

Question

you spin it and it goes round and round until the person is hypnotized

Answer 1

That wheel is just one of the props that can be used for hypnotic induction. Another example would be a watch on a chain which is swung back and forth. I don't think the wheel has any special name. And those kinds of props are more common in stage hypnosis and in movies. They aren't required to hypnotize someone.

Here's a good example of the wheel you're thinking of (scroll down to the bottom): http://www.designedthinking.com/Fear/Change/Hypnotic_Induction/hypnotic_induction.html