ScrewBall or Screw Ball

A fun thing to have. I have never seen one except in sketches. You can tell your friends that they inspired it. It is not a reflection of me. Approximately 1.2 inches 3 cm OD. It was a challenge to design due to needing a spherical helix. If you rotate the screw ball on your screen by holding down an arrow key it looks real cool if it rotates about the center axis. Have fun.