Quote Originally Posted by postmandave
make sure you cool the vapour trail from your exaust fan. the postman
Quote Originally Posted by stinkyattic
... and the vapor trail from your anti-aircraft missiles.
Those are sure to attract attention.
I'm trying to put together a laser for this very purpose... I'd appreciate your help.

So far, I've got shitloads of LEDs and a few HID bulbs I had lying around (mostly HPS).
Various mirrors from womens' cosmetics thingys...
Mylar...
And an Apple Newton PDA circa 1994.

Ideas?
I know the laser wouldn't leave any smoke trails... maybe?