Petty Officer 1st Class Kevin Spratt, a boatswain's mate stationed on the Coast Guard Cutter SPAR, displays his hammer hook invention in Kodiak, Alaska, April 12, 2018. Spratt combined two tools commonly used by crew members working on a buoy deck, a chain hook and a maul, which allowed for a safer working environment by de-cluttering the buoy deck. U.S. Coast Guard photo by Petty Officer 3rd Class Lauren Dean.