that I think was a free download from thistlegirl designs. I have it as one of my math work station activities. Also, if you have a smart board or an interactive board of some kind, you can go to
http://www.phonicsplay.co.uk/BuriedTreasure2.html I love this site for nonsense word fluency practice! You might do a teachers pay teachers search for pirates and see if some freebies come up too!