Here's an easy magic trick that just about every magician has played around with at one time or another. It's a mind-reading effect and that is available for under ten dollars at any magic dealer in various versions.
The trick is quite baffling and easy to learn and perform. I highly recommend this one to beginners and you may find cheap versions in some beginning magic sets.
The color cube consists of an opaque box, a lid for the box and a cube with different colors on each side.