So, look here. And read the disclaimer all the way through. And take it seriously I am totally not kidding.
Normal laser pointers are (I believe) Class I; the ones being sold on the site above are Class IIIb, and:
The beam from a class IIIb laser can cause serious or even permanent eye damage and the blink reflex is not quick enough to prevent this damage.
(Laser classes are described here.)
Fun, eh? Now you know why I probably shouldn't have linked to this. :-P