Can some one please help me with this competition? Please!?

I'm entering a competition to win backstage passes to a band I've been waiting to see for ages. The competition asks fans to show their love for the band. All my ideas have been taken. Big banners and other awesome ideas. I need something original, which won't be to difficult to do. that is BIG and i mean BIG. It also needs to be public. if anyone has ideas please help! thanks a lot. :D