I've attached a ball to the rolling ball sculpture with the idea that you cut it off and sand it and it should work as the marble. The marble is 5...

This rbs is the regular sized one I had printed. (I tried scaling smaller from here). It's about 1-7/8 inches tall. The track separation is abou...

I revised the Christmas Ornament RBS to have just a little more slope. I'm hoping it's enough to have the marble roll without problem. I added a ...

I think this is the smallest I can possibly make the Earring RBS given shapeways minimum wall thickness limitations for white strong and flexible. ...