April 2, 2010 No Comments Free Pancake Puppies Sundae at Denny’s Free Pancake Puppies Sundae at Denny's Stop by a Denny’s between April 3-9 and use this printable coupon to get a Free Pancake Puppies Sundae. Free Pancake Puppies Sundae at Denny’s – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.