I really like how the Surfrider Foundation have represented the effects of plastics in the ocean. Showing the plastic in sushi which is sea food to represent the ocean I think is a clever and very creative way to grab people's attention.
Heinz Tomato Ketchup This ad shows the need to satisfy curiosity. It shows this by having the ketchup bottle look like slices of tomatoes. Which satisfies the curiosity that it is made with real tomatoes.