Love these creative cardboard costumes! Such wonderful material, cheap. easy to work with, flexible ( fold and pull over hard edge until you get the shape you want). These costumes are by design students - cardboard catwalk.
I found this picture with a caption saying this is door knobs found in coal. I believe it to actually be some type of coral or other formation under water. But would like some further advice to clarify what exactly it is! Any information will help!