The Fablab team in Turin, Italy, recently created an interactive digital lathe that uses Arduino, Blender and a MakerBot 3D printer to create and print a parametrc 3D vase.
Lorenzo Romagnoli writes:
We developed a system in which Arduino extimates the real diameter of a physical collapsible cyrcle and sends the data to Blender that consequently modifys a parametric vase. Thanks to the 3d printer we have in our Fablab we decided to directly 3d print what people design on our own.
You can read more and find the source code for the project on the teams wiki.