Where there's smoke - there's a locomotive?

Today was the day when I tried out the electrics and smoke machine on the small locomotive feature for the Sign Invitational Challenge. Lacking experience in smoke machines I quickly learned it is important to size them according to how much smoke is required. We didn't need much for this small locomotive. We got a whole lot! The machine we had acquired was apparently just a little oversize and literally filled the room with smoke in a flash. It was impressive but not quite what I had in mind. A few modifications are obviously needed. This is how we learn.  :)