You could use a snow drop with some small pieces of transparant plastic. Place it in front of the stage so that al the lights from the auditorium shine tru it..........
Good Idea TommieD, and can be effective. I often, however, caution flks against using plastic, around dancers. As we all know dancers can trip over a heavy line on the ground plan, and most plastics become extremely slippery on a stage floor. It is for this reason aloe that I usually frown upon the use of plastic " Fake Snow" in the Nutcracker, or Christmas Carol, when there is a lot of danceing going on there is a lot of potenital for slippage.