The Piano Hanger – It was designed by Patrick Seha for the Belgian company Feld. What I love most about the Piano Hanger is that it is completely flat when not in use. Unfold numerous hooks as you need them, or hide them, when not.
The Piano Shelf: New York based artist and designer Sebastian Errazuriz . It folds flat when not in use, occupying zero space in the room. Once you need to store something – simply unfold the sufficient number of ‘keys’ to accommodate the item.
Turn your books into works of art using the Invisible Book Shelf - This is so awesome, I have so many books and I love them all, but storing them on a bookshelf doesn't show how great they are individually.