Humpack Whale conservation sticker?

I am doing an oral tommorow for school on Humpback Whales being an endangered species. We have to creat a sticker promoting awaerness. I was thinking of doing one with a picture of a cartoon whale and writing "SAVE THE WHALES" in Japanese(as they are the ones killing them). Any other suggestions???(btw, the best one gets i prize, i want to win lol)