This is the greeblie seen on the Seventh Sister's belt. The photo of the completed piece is one I printed at home. I'm sure a Shapeways print will not need as much coating and sanding as I had to do though! =) I'll get one eventually to show.
If you need it scaled, please let me know as it is sized for myself. It is smaller than the belt buckle.
1/25/16: Raised the 'buttons' a bit as my home test print was pretty flat.
1/29/16: After doing a 3rd test print with my personal printer I raised the height of the part to 0.25". Much better!