Does anybody know of a replacement smoke generator that works with the Lionel smoking diner? Lionel parts service lists the smoke generator as "unavailable". About ten years ago, I tried replacing the smoke generator on my previous diner with a smoke unit from a steam locomotive. Smoked great for 15-20 seconds then melted the roof. Bought a new diner after that, but it seems silly to buy another one for $30-$50 if the smoke generator has a replacement that works.