Reveal

via NYTimes:
Reveal, a device that creates the illusion of light coming through a window that isn’t actually there, is the brainchild of Adam Frank, a Brooklyn designer. He calls it “a way to use images to alter our perception of space and architecture,” a complicated explanation for a simple idea: a small projector mounted on a wall or ceiling, casting an image that looks like the shadow of a mullioned window and a tree onto a nearby wall. Air blown through the projector ruffles dangling pieces of steel inside, making the tree appear to sway and compounding the trompe l’oeil effect. Produced in a limited run of 1,000, Reveal sells for $380. Information and orders: adamfrank.com.