Aug. 16, 2011, 4:24 PM UTCBy Tricia McKinneyRemember the board game "Masterpiece?" I always played as Millicent Friendly, and my first painting was always "Nighthawks" by Edward Hopper. Today I found out that the U.S. Postal Service is unveiling a new forever stamp, using a gorgeous Hopper painting of a sailboat called "The Long Leg." Enjoy.