With The Hobbit: The Desolation of Smaug set to hit theaters in just a few days’ time, Warner Bros. is running full steam on promotions for the film. For its latest one, the company has announced that it is teaming up with Microsoft for a cross-platform campaign that will provide fans with a key goodie from the film.

This offer revolves around a free 3D printer blueprint of The Key of Erebor, a specific item used in the film. It will run across various Microsoft devices, including the Xbox 360, Xbox One, MSN and Windows 8, and will provide information about key characters, events and artifacts, as well as actor biographies and other behind-the-scenes information.

Fans interested in a free blueprint download for the 3D model can access it and reproduce the item for the cost of the print. It will be available for download on the same day as Desolation of Smaug, on December 13.

Owen Sagness, General Manager for Microsoft Advertising and Online UK, stated, “By offering fans a blueprint for a 3D model of one of The Hobbit: The Desolation of Smaug‘s ‘key’ artifacts, we’re providing a genuinely valuable and unique experience that puts the consumer first, while continuing to deliver for the client and push the boundaries of what is creatively possible using new technology.”

Source: 3Ders