Coolwoo via Amazon offers the Coolwoo Kids' Backpack in Dog for $16.99. Coupon code "DEAL0331" cuts it to $13.59. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.40.) That's a few cents under our February mention and the lowest total price we could find by $7. Deal ends April 15.