Rear Adm. Steven D. Poulin, First Coast Guard District Commander, and the crew of Coast Guard Cutter Reef Shark send season's greetings during a mannequin challenge video, Wednesday, Dec. 14, 2016, in Boston. The crew of the Reef Shark, an 87-foot coastal patrol boat, are frozen in place in various positions on the cutter's bridge. (U.S. Coast Guard video by Petty Officer 3rd Class Andrew Barresi)