NEW YORK (AdAge.com) -- Which of your body parts do you dislke the most? That question is the central gimmick of a advertising campaign being prepared for the new Broadway show "Reasons to be Pretty." Orchestrated by the SpotCo ad agency, a call went out for "everyday" people to show up at a Manhattan casting call ready to expose their bodies and confess their insecurities. The eight winners are having their parts photographed for the ads.