Glimmer of an idea

What about creating a book that is unreadable, unusable, non-functional? Would it be made out of paper or would be it be some harmful material like rusty sheet metal? How would it be bound? What typeface would I use? What would the content be (is the content important in this case)? Format? Would there be a "cover"? Would it even be physical . . . or online? Or a projection? I like the repurposing of books into sculptures and what-not. But I want to actual create a "book" that doesn't serve a purpose.