Monday Mystery, found in the ocean off Maine

 Another weird one. This aluminum and fibreglass thing was found floating, someone picked it up and brought it ashore. Looks like the top handle is maybe a pivoting flagpole, The "handhold" area looks much too light to have been used for towing or anchoring... In the image below the remains of eys are somewhat visible, so it can't have been too serious, but so far no one can figure out what it is.