NEW YORK, NY - FEBRUARY 22: A sneaker with Nike's new Flyknit technology is seen during Nike's introduction of new basketball and training technology at Basketball City, Pier 36 on February 22, 2012 in New York City. (Photo by Mike Lawrie/Getty Images) Nike (NKE) COO Eric Sprunk attended the GeekWire Summit last Friday, during which he claimed that you’ll soon be able to 3D print your own Nikes wi