I've seen a 'smoke generator' on one of the English sites that is actually a 'humidifier'. Produces lots of white 'smoke' but nothing is really burned. Can't remember who makes it but I'll look for it again. Also no idea what the thing costs or how to convert 'L"s to '$$'s. Oh well.
- 'Doc

Found it! Go here; http://www.jjc-electronics.com/
takes a bit to load so hang in there.