I would like to see something like this on the market. Perhaps such a thing already exists, but I haven't seen/smelled it. Of course there will be some people who give the knee-jerk "I don't want the smell of smoke in my house!" reaction, but it seems like a lot of people enjoy the waft of leaf/wood smoke in the cool fall air. Yankee Candle tried to capture something like what you're talking about in their "Fireside" scented candle, but I think they missed it.