(thanks dieter)   
            an ecosystem for building 
             your own prayer machine  
 things called "synthesizers" can be used 
 for communion with deities and fursonas. 
 popularized by serge and his ilk such as 
    mc kenna or buchla. you can induce    
   liminal states to aid in divination.   
   "frog box": the author's attempt at    
              such a device.