Here's a great, visual and easy magic trick. And it's about money, something everyone is interested in.
You show a small device that has two rollers. You take a blank sheet of paper that is the size of a dollar bill and insert it between the rollers.
You begin to turn some knobs and the paper begins to pass between the rollers. And when it comes out, it's a real dollar bill. It looks as if you are somehow printing money.
This is a great trick for kids and grown-ups, but I think kids should be at least eight because the mechanism takes some getting used to. Younger kids will probably become frustrated by the device and simply break it.


