Plastic horns will be given to the first 15,000 fans as part of a promotion on Saturday to capitalize on the World Cup buzz. The promotion has been planned since winter, long before vuvuzelas became a household name around the globe. "It's not really a noise you hear at a baseball game. It's obviously going to be loud,' said third baseman Jorge Cantu, a soccer fan who admits that the World Cup vuvuzelas can be "a little annoying.'