"Russian Stacking Doll" Bomb/Bullet prototype

Blair Collins aka Inlite a designer from New Zealand sent over some awesome pictures of a toy prototype based off of the concept of the "Russian Stacking Dolls", but instead of dolls he uses bombs/bullets. Blair says that "I modeled it in Blender and sent it to ShapeWays to have it printed using selective laser sintering (layers of plastic powder melted together with a laser)." The prototype in the picture above is made from nylon and "is insanely strong but slightly rough due to the printing process." says Blair. He also states that the walls of the casings are super thin, and really does not know how to get this produced (any suggestions?), either way the concept is amazing ,and the prototype is really solid. Great job on this man, and let us know how the rest of the process goes.