For those of you who wonder about what technology is handy at various
TLs, here's a little tidbit I picked up from an educational-supply
catalog this arvo at lunch. For $300, you can buy what I believe is
the world's smallest practical visible-beam laser so far, a unit the
size of a pen weighing about 100 grams that uses AAAA batteries to
produce a 4 milliwatt beam with an easily visible red dot that has
a spread of approximately 1 per 2500 (yielding a 75mm spot at 100
meters). And I have no idea how much of the cost is the 24k gold
casing they sell it in....
metlay
Come ON, people! Try to get a Horde of yourselves!