Hey guys I'm always learning cool new stuff and this is one I think is valuable honestly because very few people have a 3d printer but most people have access to paper , a printer , scissors and glue :). While I was at the Dragoncon convention I saw all kinds of costumes , robotic animation of characters for sci do stuff , and more. I had to ask them how they did it and most use the Pepakuru or Papercraft method. Pepakuru is a Japanese word for papercraft but many people call it that because it's origin is Japanese.
I will update this first post periodically if newer better option come to my attention but this is a start.