The site Instructables generally has some terrific DIY projects that you can try at home, and this one is definitely up there with one of their greatest.
As you can see in the image and the video after the jump, it is essentially making a monitor that only a special set of glasses can see. What Instructables user diimovi did was disassemble a monitor, remove the polarizing film, and then glue a cutout made from this film to a pair of 3D glasses, the types that you get at movie theaters and have to return at the end of the film.
Too bad I don’t really have any electronics that I can try this out on. Occasionally, I like to do work at the library or a coffee shop, and I am a little concerned about the information people might see on my computer.
Of course, there might be some people who think I am going nuts looking at a plain white screen. Plus, I’m sure there are people who can figure out this method, but can they form their own pair of glasses?
If you want to check this out for yourself, go over to the Instructables site and follow the instructions.