ok a few things that would work;-
cut and restored rope.... pirates would cut there guy ropes at the dockside for a quick getaway often reclaiming there rope and tying it together..... longstanding pirates new the secret recipe to mend there ropes.
tip trunk i.e. pirates booty chest.
secret treasure map can be used with pirate booty chest..... simple map with squares numbered, roll a die and add the top and bottom number together to get a random number
that square contains a picture of the magic word you predicted or makes the tip trunk full of treasure {use whatever production device or prediction you like}.
colouring book....pirates used hypnosis to escape the law and hide there booty let me demonstrate, a tube on the back of the book can carry treasure which you can tip out of the book at the end
change bag can be used to show how several pirates would evade the law by disappearing into the clods only to reappear in the pirates cove... some hankies and colouring pens is all you need.
should get you juices flowing..... remember to err is human to arrr is pirate.