Chicago CNN  —  When Christina Ernst dreamed up the concept for a self-twirling dress, she made it and then programmed its robotic arms to lift the hem of a romantic pink smock gown and to spin it left and right. She turned fantasy into reality with a flickering, faux candle-lined corset top, too, as well as a cathedral gown with stained-glass-like panels that could be illuminated like windows seen at night. Over the past year, the 28-year-old has attracted hundreds of thousands of followers