Somewhat recently, I've filmed/worked on a few simple and low budget project videos/episodes for "Tiny Yellow House" and for Make Magazine, and this was one of them- its a bicycle inner-tube bookshelf, that is affordable, removable, and can be used for storing books either on top, of stretched-within (as shown). Its simply made of stock threaded pipe pieces, flanges, and a few bike bands- all of which I got for free from Velocycle in Canton, MA (thanks!).
As a "double feature", I shot this episode (still being edited) at the "Wooden Wonders" Hobbit Hole HQ in Unity, ME, so you'll get to see some cool shots, interiors, and more.....well, once I finish.
Its another, recycled-material idea that might end up in the follow-up to my "Humble Homes, Simple Shacks" tiny-housing book, which I've been working on for some time.
-Derek "Deek" Diedricksen