Almost a year ago, we were reminiscing about the things we loved to do as kids. The two of us grew up in Tennessee. As kids, we often visited a local science museum - the Oak Ridge Museum of Science and Energy. Our first and longest stop was always at the Rolling Ball Sculpture. There are lots of toys you can buy that let you build rolling ball sculptures, but most of them are small in scale and made of plastic. We didn’t want to introduce a bunch of new plastic parts into the world. Larger installations found in museums are usually made of metal, require welding, and are very difficult or impossible to reconfigure. We wanted to create something that allows kids and adults to construct their own large-scale rolling ball sculptures, and to have fun building and re-building new and different creations.