Newton's Cradle

        I have no idea if you know what it is, but, this thing is awesome. Entertainment for hours long if you ask me. Its educational, yet, the greatest invention ever created. Trust me, its a one of a kind product. Go on and by yourself one today because I HAVE. Come on. Just do it-
And here's what it looks like:

For every action there is an opposite and equal reaction. This theorem was proposed by Sir Issac Newton years ago and it's still the basis of modern physics. This contraption features a stainless steel finish and nylon cords that hold the miniature spheres in place. It's a great way to impress or perhaps annoy your co-workers. Be warned however, that if you are approaching the edge of a black hole, this item may not work as Newtonian Physics break down, but on planet earth and your desktop it's guaranteed to be a hit.
          And its a great gift too.