hi colin i thought of that as well but decided
against it becauce disco's smoke machine is based on water and it would't be suitable so not wanting to pay £700 for a smoke machine i started experimenting with different ideas and finaly made my own smoke machine which uses baby oil and gives a contineous thick smoke. i did this using bits and pieces from my workshop and i only had to buy a set of plugs and adaptors from one of the makers of smoke machines which cost me £40 maybe you can do something similar just use your imagination and technical know how
george