Holy Harry Potter!! Invisible cloaks for the masses. Well, more like traslucent as opposed to totally invisible, and actually they're not available to the public as they are still being developed. The Univ. of Tokyo has something remarkable on their hands and you definitely need to check out the videos at the bottom of their page.
"Optical camouflage is a kind of active camouflage. This idea is very simple. If you project background image onto the masked object, you can observe the masked object just as if it were virtually transparent. This shows the principle of the optical camouflage using X'tal Vision. You can select camouflaged object to cover with retroreflector. Moreover, to project a stereoscopic image, the observer looks at the masking object more transparent."
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