MOTM

>Welcome aboard!  An easy way to achieve the effect you are looking for is to
>glue a small piece (or small pieces) of mirror to a speaker.  Next, direct
>an intense beam of light (up through the strength of a laser beam) at the
>mirror (please take all appropriate safety measure for yourself and you
>patrons).  Finally, send a normal amplified sound to the speaker.   And
>instant, cool Lisa Jousse-like patterns on the wall.  You will need to
>experiment to get an effect you are happy with for your installation.

Here are some inexpensive gadgets of this type:

http://www.mi-lasers.com/laserlight.html


I have the GAL-2 myself. Only needs a small amp, but you pretty much have
to have a 5-10 mW laser for it to look decent.


-- 
Terry Bowman, KA4HJH
"The Mac Doctor"