This is fascinating. The book Forgotten Heritage: Uncovering Singapore’s Traditional Chinese Puppets comes in a fabric case that you have to cut and unfold to begin the book. There’s a video at this link.
This is the sort of thing that keeps physical publishing a living and growing thing: you can’t download that tactile, revelatory experience. That would be an object to delight in owning and reading. I bet you some people buy two – one to cut and one to keep intact, as they both have their joys.