All self-repecting pirates should have one of these....
Take a paper cup and cut a slit in the bottom. Cut out a cardboard hook, double thickness and to the width of the slit in the cup, and push about an inch through the base. Inside the cup, fold the cardboard either sit of the slit and tape securely. Cover the whole thing in tinfoil, being careful of sharp edges of course, and ta-da, you have one hook hand!