As one of the Internet's largest marketplaces for handmade products, Etsy boasts more than a million shops, each of which offers its own line of handcrafted products, craft supplies or vintage gear. 

But Etsy also has a high-tech side. The site is home to thousands of 3D-printed objects, from the run-of-the-mill (iPhone accessories) to the truly unique (life-size dinosaur-skull replicas).

The shops that sell these 3D-printed creations often work with 3D-printing companies — like Shapeways, i.materialise, Kraftwurx, Ponoko or Sculpteo — to produce items for Etsy shoppers.