November 26, 2013 No Comments FREE Snickers or Twix Ice Cream Bar at Thorntons Download Thorntons mobile app to get a coupon good for 1 FREE Snickers or Twix Ice Cream Bar at Thorntons stores. Coupon valid November 26 – December 2, 2013. Locations. FREE Snickers or Twix Ice Cream Bar at Thorntons – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.