October 28, 2020 No Comments FREE Kid’s Milkshake at Steak ‘n Shake on Halloween On October 31, Kids 12 and under in costume can get a FREE Milkshake at Steak ‘n Shake locations. FREE Kid’s Milkshake at Steak ‘n Shake on Halloween – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.