Paddle Move

The Paddle Move is an excellent sleight for working with timing, body awareness, focus, mirrorwork, and collaboration.

The simplest idea is to have a paddle with one image (often a top hat) on one side and another image (often a rabbit) on the other side. Doing the Paddle Move allows you to appear to show both sides of the paddle while really only showing one. So you can make the rabbit appear from the hat and then vanish again.

There's a great description here of a more complex routine using two paddles and I've found this to be a great effect to teach for developing body awareness and focus.