Minnesota sends 3-D printed ornaments to national Christmas tree Published December 3, 2015 FOX 9 Morning News FOX 9 Minneapolis-St. Paul Facebook Twitter Print Email Image 1 of 2 ▼ The national Christmas tree is shining brightly outside the White House in Washington, D.C. All 50 states are represented with ornaments on the tree and for the first time ever Minnesota used 3-D printing technology to create its ornaments.