Lo these many years ago when I worked at a small bookstore in central Iowa, we carried blank books made partially from recycled bicycles. The binding was often used bicycle cable, they were held shut by bands of rubber from old inner tubes, etc. They struck me as a neat thing, but I had no use for a blank book and never bought one. Now I'm thinking I'd like to get one, but I can't find them online (my searches bring up bike repair manuals for the most part). Have you ever seen such a thing for sale? Where?