I have a prop I have used for many different themes. It would be perfect for a pirate show. It is a large wooden chest, and resembles a treasure chest. It is made in India, I think, and called The Enchanted Chest. Basically a tip-over trunk. Looks very cool.
Routines could involve a parrot (use large flash card pictures or a puppet, no need for a live bird), gold coins, a fake hook hand, a peg leg used as a wand, etc.
Tim Sonefelt has a great pirate treasure map routine he is now selling at his Wonder Imagery site. Barry Mitchell has a little treasure chest prop used in a routine about gold coins. Rice Silks still sells the pirate flag silk.
Or, you could think more modern, and go with some ideas from the cartoon show Sponge Bob Square Pants. which has nautical, pirate, under the sea overtones.
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