Hi All, Yesterday after dinner, my father-in-law open up a can of guiness stout. After emptying the content into a cup, he release that there was something in side. He cut open the container and found a plastic ball inside (size slightly smaller than a ping pong ball). Not sure if this is the latest marketting gimmick from them so would like to seek yr opinion? Will try to post a pic soon, have trouble transfering the pic from my camera ph to my laptop....