Print it out upside down with supports. Snap it on your favorite Pez. Enjoy!
I wanted to show a novel way of printing out PEZ dispensers. I turn them upside down and orient them at a 15 degree angle. This means that the Pez cheeks, Pez candy pusher, and the Pez character's face are printed crisply without support. The breakaway supports are on top of the head and under the overhangs made by the base.
Printing it conventionally right side up would cause the Pez mechanicals (cheeks and candy pusher) to be printed with breakaway support. These support structures may not break away cleanly and cause problems mating the Pez head with the stem. If you print without supports, where the head has any overhangs such as a large nose or masculine chin, the plastic would have trouble printing in mid air and end up looking stringy with structures that kinda look like stalagtites. Worse yet, if you print with support then your Pez character's face will be messed up if the supports didn't break away cleanly.
Update, 11/6/12; Smaller, more economical version added named RomneyPezSm.stl.