Carvel Coupon: Buy One Get One Free 08/29/2014 by Nina FTM may earn a small commission via affiliate links in this post. Read our full disclosure policy here. Here is a Carvel coupon good for Buy One Get One Free Classic Sundae (soft serve only)! This coupon is valid till 8/31. Other Posts You Might Like:Latest Printable Coupons 03/29: Save on Fancy Feast, Rao's & MoreCereal Coupons: Save up to $2.00 on Kellogg'sFrozen Foods Coupons: Save up to $21Save Up to $3.00 On Beverage Coupons!Meat Coupons 03/06: Perdue & More