The hammer hook, which combines two commonly used tools on a buoy deck, is displayed on a table on board the Coast Guard Cutter SPAR in Kodiak, Alaska, April 12, 2018. This seemingly simple invention is the product of two heavy hand tools welded together, a chain hook and a maul, which could have an impact on buoy deck operations for years to come. U.S. Coast Guard photo by Petty Officer 3rd Class Lauren Dean.