You might be tempted to cut the watermelon in half and get things going, but it’s easier to start by cutting off the top and bottom of the watermelon. That creates a flat side so the watermelon ...

7. Take the piece of watermelon you cut off earlier, scoop off the flesh and slice in half – this is your shark’s fin! Fasten the fin to the body of the watermelon using two cocktail sticks.