Fans who sign up for a Boston Celtics  license plate have an opportunity to snag a photo with Stephon Marbury  or the Larry O’Brien trophy. Marbury will be at the South Shore Plaza on Saturday, April 4 from 1:00pm – 3:00pm. License plates cost $40 and benefit the Children’s Hospital Boston. They will be distributed once 1,500 are ordered. Those who sign up will also receive a Kevin Garnett  T-shirt. For more information, visit www.celtics.com .