i could make you a dvd that loops with that effect on it which you could play through a projector. To make it react to sound though you would be looking at running a line into a laptop using something made in quartz composer which is a little mac app that lets you do such things
we should start trying to find ways for more bands to be able to play with visuals or try and find ways to project films behind bands so the bands playing would be sound tracvking the film, it could be fun or it could be terrible depending on what bands and films.
This laser thing is way better than you think, real stars are amazing but you can't have them covering your entire room, back of the stage, DJ booth whatever... I've said too much I should save the magick!