I know lots of people would like to be able to sell furniture from sdb's but I think it would be awesome if we could set up furniture show rooms with price tags on the furniture itself.
It could also be cool if you could specify how many items of that piece of furniture were available for sale. They would come out of your inventory and sort-of stack invisibly behind the "showroom model". So, when someone bought one chair (for example), there would be another one right there to take its place in the showroom if the owner wanted to sell more than one, and they wouldn't have to restock as often.