how to disappear completely

Engineers at the University of Pennsylvania have come up with a new way to make things invisible to the nude naked eye. This is no projection-style invisibility, as developed by some kooks over in Tokyo (watch the not-fake video demo). Their method involves a "plasmodic screen" which reduces the amount of light bouncing off the object, reducing visibility from all angles.

"...[Their] calculations show that spherical or cylindrical objects coated with such plasmonic shields do indeed produce very little light scattering. It is as though, when lit by light of the right wavelength, the objects become extremely small, so small that they cannot be seen."

Link to nature.com article; via Boing Boing if memory serves.