If you're not really into using your Kinect experiment to launch your new startup or give your next presentation, let us offer another entertaining option. Two students at the University of West Bohemia in Pilsen have created an interactive sandbox using Kinect, a projector, a computer and, of course, a box chock full of sand. The Xbox motion / depth detector is installed about two feet above the sand pit to measure each area that is carved out. Using a unique detection program, the topographical information is then transmitted to a data projector that renders an image in the sandpit -- the image being a color based on the height or depth of what has been created. The devs have built out a few different projections. Hills that are constructed by the user are assigned a shade of green based on height, while troughs are given blue hues according to depth. What's that? You built a hill and dug out the center? The projector sees that as a volcano, complete with spewing lava. If you're tired of SimCity and want to actually get your hands dirty, take a peak at the video just past the break.