Reffering to this thread:
I am giving away the lasers used in our Solar Team Twente Film.
They took a full day to make, I was trying Caustics at first but got nowhere and found that using volumetric lights was the way to go. Unfortunately the visibility of the lights in Cinema is a Linear function instead of an Inverse one so I faked it by making a lot of lights.
They are animated too !
Post your experiments here!