Yesterday I made some quick and dirty damage and status markers for Galleys and Galleons. They are 1cm square counters, put together in Word and using various symbols from the Wingdings font.
There aren't too many symbols to remember, so they should be easy to use.
Top Row, Left to Right: Damage 1, Damage 2, Damage 3, Struck (White flag)
Middle Row: Reduced Sail, Grappled, Fire, Lost Rigging (the rectangle is a sail).
Bottom Row: Taking on Water, Rudder Hit, Captain Killed (who knew there was a No Pirates symbol?)