The 3-D selfie just got easier. After two years of European trials, Staples has opened two experimental 3-D printing service centers in New York and Los Angeles. Two years after testing 3-D printing service centers in Europe, office supply and services giant Staples is trying the concept in America, with two 3-D printing "experience centers" in New York and Los Angeles. The idea is to educate consumers and small businesses about 3-D printing and more easily facilitate its use. The centers—which opened inside the Fifth Avenue and Studio City stores in the last month—are in partnership with 3D Systems, which is providing the design, scanning, and printing hardware and software for occasional use or to try out before purchasing.