Zero Blaster
The Zero Blaster is an updated version of the Zero Launcher. It has more of a 'ray gun' shape to it than the Zero Launcher, and it also has a ray gun sound effect, which you can switch on or off, depending on your preference. The water based vapour is non toxic. <br /> <br />The vapour ring is called a Toroidal Vortex. <br /> <br />The well known 'Bubble Man' Tom Noddy uses one of these, slightly modified, to produce the 'smoke' that he uses in his stage act. Here he is on German television - the intro is in German, but the act itself is in German - http://tvtotal.prosieben.de/tvtotal/videos/player/?contentId=52233&initialTab=related