Get yourself some bookends you can build on! The Build On Brick Bookends not only keep your books tidy on your shelves, they serve as a base for building base compatible with most bricks (LEGO, PixelBlocks, Mega Bloks, KRE-O, or K’NEX Bricks). Like many bookends, these have metal plates that slide under your books, DVDs, CDs, etc, for stability. You can build designs to coordinate with the books they are supporting – robots for science fiction, dragons for fantasy, a building for architecture – you’re only limited by your imagination. The Build On Brick Bookends are only available with white building plates, and you’ll need to supply your own bricks; they are $19.99 a pair at ThinkGeek.