Dutch designer David Graas has created 3D-printed LED light bulbs that have cityscapes rising from them in a series called Huddle.

These bulbs are Graas' homage to the modern city. "The mega city, despite its many problems, seems to be our destined habitat now that resources are becoming scarce. It also hold the key to a sustainable future with its concentration of information, technology and talent." he says.

They also look really cool. The bulb itself is actually a "bulbshade" so you don't need a fixture, you just hang it straight from the ceiling or it comes in floor stand version too. They're a fine example of how 3D printing isn't just about printing figures of Yoda, but also how you can customize an everyday product and completely alter its appearance.