It didn't take long for an entrepreneur to cash in on the announcement about professional hockey coming to Brooklyn . Shortly after the New York Islanders announced their relocation from Long Island to Brooklyn, T-shirts went on sale online for fans who can't wait until 2015 for the team to take up residence in the Barclays Center. The tees — feature two crossed hockey sticks with the words "Brooklyn NY 2015" on the front are made by Crosstown New York and are getting a good reception from customers. The shirts have an uncanny resemblance to the old school black and white Brooklyn Nets uniforms making one wonder if Jay-Z has a minority stake in this franchise as well. The shirts also come in the familiar blue and orange that fans in Nassau and Suffolk counties have grown up and groaned with. "We sold around two dozen in the first hour," said a rep from Crosstown. "Mostly to fans from Long Island." Can't wait to see if the crowd at the first Rangers-Islanders game at Barclays is pro-Potvin or not.