One of the best shooter-style video games I have played in a long time is Dead Space 2. The game was lots of fun, and it has one of the more interesting weapons to be in a video game called the plasma cutter. If you purchased the collector's edition of Dead Space 2, you would have received a little plastic replica of that plasma cutter to play with. One gamer took that plastic toy and grafted blue laser pointers onto it that are powerful enough to light matches and pop balloons. link
One of the best shooter-style video games I have played in a long time is Dead Space 2. The game was lots of fun, and it has one of the more interesting weapons to be in a video game called the plasma cutter. If you purchased the collector's edition of Dead Space 2, you would have received a little plastic replica of that plasma cutter to play with. One gamer took that plastic toy and grafted blue laser pointers onto it that are powerful enough to light matches and pop balloons. link
You need a couple of hundred milliwatts to power a single diode laser so that it'll light a match or burst a balloon. The typical current rating of even an alkaline AAA battery is 10mA for continuous discharge. 3 volts (1.5 + 1.5) at 10mA gives 30mW at 100% efficiency, and there are no boost converters that achieve 100% efficiency.
Those diodes might well be able to light matches and burst balloons, but they won't be able to do it when powered by two AAA batteries.
ps: even if it does or doesn't work.