I made this little vase using Sketchup. I might even make a video of me making a video of creating another object in Sketchup. The thing that is important is that you can download a mod for Sketchup that will allow you to both import STL and export STL. So you can alter 3D models or create your own. For me the beautiful thing about this video is the play of light as the printer goes back and forth creating it.