Remember playing in a sand pit as a kid? Your imagination was the only thing that turned your rubbish landscaping efforts into anything more than a pile of sand. Two Czech students have used Kinect and a projector to change all that.
The Kinect module detects the depth of your sand creations, while a projector overlays an image to match your sand pit's topography. Make yourself a real-looking Tracy Island or recreate your favorite evil lair, complete with its own active vulcano spewing lava -- whatever your maniacal imagination can conjure up. [SmartMania via Engadget]