Gizmodo - What Is This? - Rosetta Disk: "Looks like a billion gazillion television screens, thundering their nonsense and babbling at the same time in some gigantic art installation."
Actually this would be really rather useful. But you would want to leave a 500x microscope with it or it would be ignored. At the very least you need to put instructions on making a 500x microscope on the back so people know there is something to read on the front.
I'd rather go with something that can be read without more then a little magnification, but as small as possible.