Motorcycles, especially Harleys are good.
I like the idea of a 3x4 banner with the name of the contest and GC on it and it's great advertising for you. Of course that's in addition to a trophy. Laser engraved cutting boards are good especially for each category. Overall there's nothing like a big old hunk of trophy but try to keep them under 3 feet. Bigger than that is hard to display. And creative stuff with a BBQ theme is also cool. Think out of the box. And don't spend to much on trophies unless it's a Harley because we're really there for the cash. SHOW ME THE MONEY