There are two ways that I have used to "judge" costume contests. The first is your contest, your decision. But be prepared to take some flak over said decision. Second, have the crowd applaud for their favorites, and give it to the one with the best audience response. And I agree, just have the people show up. And the age categories are great, gives the little ones a fighting chance!

__________________

Draco dormiens nunquam titillandus