3D printer Lego: https://www.youtube.com/watch?v=t4sL0kZNlIM http://3dprint.com/1383/lego-awarded-3d-printing-patents-may-allow-users-to-print-own-bricks/ https://gigaom.com/2014/03/03/lego-mulls-letting-customers-3d-print-their-own-bricks/