Any ideas for Jonas Brother Sign contest?

Im a HUGE Jonas Brother fan and im going to one of their concerts! Chevy is holding a contest where they will be walking around the parking lot looking for posters that stand out. The poster must have the Jonas Brother design, Chevys Design, and a little bit about Global Warming. Does anyone have any ideas for what I could put on mine? Oh and by the way, the winner gets…4 BACK STAGE PASSES!!!!!!! visit www.disney.com/rocktheroad for more details. PLEASE REPLY!

i’m doing the same , they have pix of other winners sign on that page,just get ideas!