This thing is an extension of Helix Ring with Seven Balls. I added a stand with the helix going in the opposite direction. You can grip the stand and spin the ring. The balls go spinning around inside the ring.

This is another design created in ZBrush.

I used ReplicatorG to prepare the file, a MakerBot Replicator2 with the Replicator 2 slicing defaults and the following settings with white MakerBot PLA to do the printing:

Infill = 10%
Layer Height = 0.200
Shells = 1
Feedrate = 90
Travel Feed = 150
Temperature = 230

I used a raft with full support. It took a little over 5 hours to print at 100 mm tall. Removing the support structure took quite a while with this design as I wanted all the parts to move smoothly.