From Maxi's blog post on using Shapeways for 3D printing what were originally 3D virtual jewelry designs:
Shapeways and 3D printing is something that many SL creators could start thinking about right now. We can build in mesh for Second Life and then take those meshes and send them to the awesome Shapeways (3D printing bureau and shop), upload them and make them available for sale as real world products too, offering lots of different materials from Sterling silver, to bronze and other materials. This is really quite an amazing opportunity for digital creators of all kinds.
Join us in +Second Life at:http://maps.secondlife.com/secondlife/Vesuvius/105/167/25 or watch online the Netherlands Shapeways meetup at:http://www.ustream.tv/channel/metameets
February 28th, 2013, 10:30 AM PDT (SL) / 1:30 PM EST
More info on Shapeways World Meetup Day:http://www.shapeways.com/blog/archives/1890-Announcing-Shapeways-World-Meetup-Day-on-February-28th.html