Hi, I'm going to build my own cast of Avenue Q characters, as a challenge to improve my skill in puppet building.
I wonder if someone may give me some advice about the heads size, that as you know, must be the kind of size you can show in a live performance on stage. And also I'd like to know what size of pupils can I use for each character? I can find pupils from 12mm to 2,5mm on amazon, but I can chose the right size for me, once i'll figure out the size of the head and the size of the eyes   .

Thank You!