If you're cheap, lazy or simply don't have any need for the fragrance of evergreens in your living room, but you're eager to get your place looking festive, then this 2-dimensional Christmas tree from Firebox.com might be for you. Simply unroll it, and tack the thing up to your wall. At 6 feet high (and less than a cm in width!), the thing is guaranteed to make your friends and family grin, if not confuse them a little. But you better get them quick. Apparently, the trees are flying off the net and into living room walls with vigor. Link via AmericanInventor.