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3-D Etch-a-Sketch - 2009
3-D Etch-a-Sketch - 2009
The Sketch-3D is a lot like the classic red Etch-a-Sketch, except this futuristic version includes an extra knob. The third dial draws lines that show depth, which are visible only when users wear red-and-blue 3-D glasses.

Not satisfied with your work of art? Simply shake the Sketch-3D's control board to clear the screen -- just like the Etch-a-Sketch of yore.

Detroit-based design firm o2 Creative Solutions built the Sketch 3-D in just three weeks, but you won't find it in Toys "R" Us -- the group says the device is merely an artistic experiment.

NEXT: First Macintosh - 1984

Last updated September 23 2009: 11:26 AM ET
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