Fun with Lasers

Picked up a sweet red/green laser pointer from ThinkGeek. It was originally for artistic projects, and pointing at things, but it turned into a glorified cat toy.
After locking the cats out of the room, I did a little more long exposure photography. Here are the hilarious results:
The green laser is really bright, despite being <5mW. In a really dark room, you can actually see the beam. More powerful and/or focused versions of this laser can be seen cutting things, popping balloons, and lighting matches on the Internet. Well, not lighting matches *on* the Internet. That would be a pretty powerful laser.