March 14, 2011 No Comments Free Wacky Pack Kids Meal at Sonic Sign your kids up for Sonic’s Wacky Pack Kids Birthday Club and they will receive a coupon for a FREE Wacky Pack kids meal during the week of their birthday. Free Wacky Pack Kids Meal at Sonic – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.