By hooking a Kinect sensor up to one of those funky spherical Pufferfish displays, The Technology Studio in the U.K. has built itself a desktop version of the unblinking Eye of Sauron, which follows you around with its gaze. It's almost creepy enough to make you want to turn invisible.
Pufferfish displays, called PufferSpheres, use an internal projector and some kind of totally
sweet savory lens called an Umami lens that can toss the projection onto a nearly seamless 360 degree sphere. By wiring the projector up to a Kinect sensor, the Great Lidless Eye can follow you as you move around the room:
Luckily, the PufferSphere isn't touch sensitive, 'cause we all know what happens when you grab on to spherical displays with giant evil eyeballs inside them. Unless, of course, you fancy yourself some kind of badass legendary lost king or something.