By Daniel Kline The three fast-food brands share the same parent company but they have never done this. KFC and Taco Bell lead the way when it comes to fast-food innovation and stunts designed to get you talking about their brands. The fried chicken chain has focused on the latter offering public relations-friendly promotions like its Mother’s Day chicken bouquet, a company logo so large it was visible from space, a fried chicken corsage, chicken-flavored lip gloss, and of course, a parade of celebrities playing iconic founder Col. Sanders. The chicken giant has also offered up some food stunt…