Here’s a project that can turn any sort of vessel into just the right vase for the flowers you give to your sweetheart. Clip on vase by aleksandar on Shapeways:
The “Clip on vase” is an accessory bringing double functionality to an IKEA Pokal glass (or any other with diameter of 83-86 mm) so that it can also be used as a vase. A simple click is required to convert your glass into an aesthetically pleasing vase.
The shape has been optimized so that it uses as little material as possible without compromising the functionality of the product. You can have a look at the product in details on ad-3d.com
“Clip on vase” required a generative/parametric modeling process which is described in detail [in the video video tutorial below].