Nokia enables 3D printers to print their own phone cases.

Nokia has released specs to enable users to create their own cases for their own phones by “printing” their own using a 3D printer.
Yes, it’s early, yes the technology is probably not ready for the consumer yet. Yes, importers of such product could potentially wave goodbye to middleman margins.
This article in particular reminds me a little of the promises of digital press printing in the early days. Disruptive business models were proposed that assumed that production and distribution could be combined to decentralising printing to the point of purchase.

http://gigaom.com/2013/01/18/why-nokias-3d-printing-move-embraces-the-future/