If you fit into the piece of the Venn diagram between "Fans of The Hobbit," "Microsoft Users," and "Folks Who Have a 3D Printer," Microsoft and Warner Bros. UK have a treat: On December 13th, when the second Hobbit movie debuts, you'll be able to download plans to 3D print your own souvenir: the Key to Erebor.
Microsoft and Warner Bros. UK have teamed up to make a slew of interactive Hobbit ads for Windows 8 apps that should soon spread to Xbox as well. The partnership is UK-centric, but with the film debuting on the same day on both sides of the Atlantic, it's rather safe to assume US-based Hobbit-heads will have the same chance. If you don't own a 3D printer, you can always just buy an official replica from Weta. We like the 3D printed route better, because if you're going to clutter up your place with movie props, you might as well do it for free. [Microsoft via The Verge]