Levitate Architects used a staircase to a loft-like bedroom to create an enormous amount of book storage space. Even though the staircase isn't very compact but could accomodate so many books that it would save some space anyway.
Kniterate is raising funds for Kniterate: The Digital Knitting Machine on Kickstarter! Create a design and press knit. A compact digital knitting machine to bring fashion fabrication back to your neighborhood.