Thru June 27th, when you order a Real Ice Cream Shake at Sonic you can get a second shake for FREE– No coupon needed! All you have to do is order a shake, malt, or cream pie shake and you’ll automatically get one FREE. If you don’t want to have your free one the same day, then you’ll be able to take a coupon with you valid for a FREE shake to use on a future purchase.
