Paul Molina, a first year graduate student in scenic design at Carnegie Mellon University works on the head of a puppet he created for class at the Purnell Center for the Arts’ scene shop. (Pam Panchak/Post-Gazette)

Paul Molina, a first year graduate student in scenic design at Carnegie Mellon University works on the head of a puppet he created for class at the Purnell Center for the Arts’ scene shop. (Pam Panchak/Post-Gazette)