Lawn Furniture of the Future

As I was walking home from taking the boys to school, I noticed that I could see one of those miniature wooden windmills decorating three different lawns in one block. The fact that these are popular is no surprise, my folks have had one, and I've often seen them in stores.

But as my mind wandered, I wondered if the means of power today will someday decorate the lawns of tomorrow in miniature wooden form. I'm thinking of a miniature wooded nuclear cooling towers or tiny petroleum refineries. The real fancy ones will have a little propane burner pretending to burn off impurities.