Opus Shelving System
Made from the same durable, featherweight stuff used to make motorcycle helmets, this shelving unit was inspired by ancient Roman block-building techniques, dried riverbeds, and sidewalks.
Swissmiss points out that these can be stacked to make a whole wall of distinctive book storage, or combined with others to make a room divider.
Finally a bookshelf that encourages the taking out and reading of books.
*Further thought reveals that this bookshelf would be great for separating and organizing genres. Or keeping your Sichos Mussar separate from your Lekutei Sichos. It just works.
$450