This week's selection is the Helix Wireframe with ball by Shapeways creator Wainstain.
The design is precisely what it is named: a twirly helix with a ball inside. Here's the trick:
This is a four sided helix with a wireframe ball inside that can move freely in any direction you choose.
Like all Shapeways items, the Helix Wireframe is for sale. You can purchase your own copy for as little as USD$23.49, but we'd prefer the stainless steel version for USD$131.66 because the ball will roll more easily.
We like stuff that moves, don't you?