Help on Yearbook Cover!?

This year I am entering a contest for year book cover. We get to draw it. We have a dolphin mascot . So it is aquatic. So far At the bottom of my page i have two dolphins the name of my school in green and blue letter and "2011' popping out of a treasure chest them on both sides of that there is coral and plants. On the top part of the paper i need ideas. Yes i could always draw fish but i really wanna win so can you please give your input? Thank you in advance! :)