This is another successful 3D print of mine:
I didn't plan to print these. I uploaded the model as a test months ago, to see how their system reacts the size of the model. Then Shapeways came up with their "write on the model" tool, also they had a free shipping week. So I set the model up to be customizable, and ordered in these two materials. As you can see the plastic one is not that good. The Stainless Steel one is perfect.
You can check out and customize, and even order the model HERE.
My Hungarian blog post about these rings.