About this 3D model

This tiny cannon was injection molded on my MakerBot 3D Printer... Yes... You read that right. And you can do it too... With no changes to your machine... In about an hour start to finish. No need to make a mold either. I'll supply that too to get you started. Here's a video showing how it's done: http://www.youtube.com/watch?v=I0GRVI_BX0U