Royal College of Art 2007 graduate Cat Greene shows, among other innovative product design projects, her shelf that rolls up at the end.
A flexible hinge of tough Kevlar fabric turns small sections of wood into an adaptable storage and display shelf. Roll it up to give space to taller objects sittiing on a lower shelf, or roll it back down for more horizontal surface.
Clever, yes?
Hat tip to Anne Maybus for a recent email pointing me to the Rolling Shelf!