What's "horrible and tacky and gross"? Last night's Project Runway challenge, according to Christian. The designers were asked to make prom dresses according to the specifications of some very opinionated high-school girls. I can't blame the girls: Who doesn't want to look good at prom?! Kevin was stuck in memories of his own Jersey prom, Rami twisted up a matronly frock, Ricky washed out his client, and Christian earned a berating from Nina Garcia herself. After ...