This coupon has expired $0.75 for Pop Tart Mystery Flavor. Offer available at Walmart, Walmart Pickup & Delivery. expires on 09/03/21 Other coupons you may be interested in $1.00 for Jarritos (expiring on Monday, 01/02/2023). Offer available at multiple stores. $1.00 for Sangria Senorial (expiring on Monday, 01/02/2023). Offer available at multiple stores.