MM Fondant, Debbie's recipe (in book) for the spongecake, and a chocolate butter-cream frosting from allrecipes.com. The gold treasure, seaweed, fish, rocks, gold treasure scattered on the ship, ship planks and decorative ship parts, rope, barrels, and anchor are all MM fondant. The flag I made on the computer, the "sand" is a mix of brown sugar, graham crackers, and gold sprinkles. Also, the X marks the spot is a fruit roll up and the pirate is a figure from our party store.
The shipwreck (after it was served...):