Business Card Origami - Orb Unit

I haven't come across too many origami pieces that make use of curves, so I found this "orb unit" very interesting. This piece was constructed using four business cards that are creased with partial circles and then locked together. If you would like to attempt to make a orb unit of your own, a copy of the crease pattern template is available here. The original creator of the orb template is reported to be Jeannine Mosely.