This week's mystery item won the prestigious German Design Plus award, to find out what it is,

Why it's the One-Handed Balancing Serving Tray [1] from Hammacher Schlemmer [2]. The tray is designed to be carried with only one hand, without compromising stability. The handle locks in to place at a 55 degree angle, ensuring a level carrying surface, exactly balanced for drinks, snacks, and even a full bottle of wine. When not in use, the handle folds down for easy storage. Available for $69.95.

Source: Cooking Gadgets [3]