I just picked up a relatively cheap (on clearance for $20 each, from $49), 5mw green laser pointer (powered by two AAAs)... and man these things are way more fun than red lasers.
Superbright, and MUCH longer visible range. I took it out in the street and was able to easily see a dot 1/2 mile away.
I've only had it for a few hours, and I've already gone through a set of batteries.
Man... I REALLY want one of the 150mw versions now.
