The Big Globe

http://www.hoberman.com/fold/Sphere/sphere.htm

The Hoberman's Sphere has to be one of the most useful and versatile props you can buy.

It is really worth it to buy the larger one, but the mini one can get you started.

I have used it in so many ways, and when it pops up big the audience always sort of gasps.

Here is one way I use it:

In my keynote "Nobody PowerWalked When I Was a Kid" I am talking about life's challenges. I pull up the small sphere and say,
"This is your mind." Then I jump it up to the huge size and say,

"This is your mind when it is stressed."

Then I kinda act like the sphere is running me down.

Anyhow, think about getting one.