When I was still working, and made microwave popcorn, I need a way to share it with coworkers who are sitting at their desks. I made the traditional magazine cover boxes so everyone could have a serving at their desks.
I use to carry 4 inch paper and fold a simple flapping bird or butterfly for whinny kids. They are basically the same model but the butterfly took a small snip. Now I just squeak their belly's. Mark