My son is an engineer at Palm who visits China frequently. Somehow, a powerful green lazer got mixed up in his luggage which he was eager to show me. It's a real balloon popper! Needless to say, lazer pointers such as this are not widely available in the USA.
Disclaimer: I agree with most folks that a very week lazer pointer is a great device and I do use one for pointing out what coral I'm talking about as well as a little chasing the cat. NEVER aimed anywhere near eyes. I'm even aware of the danger of reflection of the beam being potentially hazardous.