[rog8811] sent in this really cool hack where he used the optics sled from a PS3 as a foundation for a 7 color hand held laser projector. Combining a green laser, a blue ray laser, and a red laser ...

Or worse, you may get a product with unwanted bugs features, like some green lasers that also emit strongly in the infrared wavelengths. Sure, getting a free death ray in addition to your green ...