Heavy Riff Happy Jack Pumpkin Ale....$12.99 / 4pk 16oz can With each and every drink there are fewer and fewer. Happy Jack is a seasonal beer from the minds of our brewers. For a limited time, you can say, "It's mine, mine, mine!" But before you can read the next Rhyme, Rhyme, Rhyme....Happy Jack will have left in a hurry and quay. So be sure to get your fill of Happy Jack today.