Amid the festive sparkle of 37 Christmas trees and a 400-pound gingerbread White House, Michelle Obama honored military families as she unveiled her 2011 holiday decor. The “Shine, Give, Share” theme was reflected in the East Room’s shimmering quartz ornaments and the silver pine cones in the Entrance Hall. The stately 1767 portrait of Ben Franklin in the Green Room looked curiously out at the recycled aluminum trees adorning antique tables.