Shelves don't get the attention they deserve in the design world. Probably because you need to make them square if you want them to be useful, but when they're all square they're also all boring. Lucky for us Ronan & Erwan Bouroullec threw "utility" out the window when they designed the Cloud Shelving system, which has gloriously round shelves that form pleasantly curvy frames. And while they were at it they abandoned that old "wood" material for colorful polystyrene, so you can get your clouds in red, light green, dark green or white.
Clouds are around 73 inches by 16 inches by 41 inches (get it? "around"? heh.), but if you need them bigger, no worries, they're stackable. As the sell text says, "there is no limit to the size of a structure other than the size of the space containing it." And other than the size of your wallet, since these babies sell for $601 apiece.
(Note: I don't know why but Blogger insists on cutting off the left part of the image no matter what I do. Sorry about that! It kind of ruins the symmetry, but at least you get the idea.)