Ring Clock is a mechanical ring, which displays the current time. It has three rings for displaying the hour, minutes and seconds. The current time is highlighted, and there is an indicator so the wearer can know which way to put it on.
How cool is the Tree Bookcase by Roberto Corazza? This single-cast plastic bookcase is open on both sides allowing it to be attached to a wall or standing freely, leaving access to the books stored on the "branches" of the tree.
The Smart City Cycle by Yo-Hwan Kim. The rear wheel of the cycle hosts extendable compartments that can hold your goodies for you. If required, then the storage extension can be completely removed as well.