Tekton via Amazon has Tekton 30403 Jacketed Fiberglass Ball Pein Hammer, 16-Ounce on sale.
Price is $5.52 with Free Shipping for Prime Members or if you spend $25 or more.
Also Walmart has TEKTON 16 oz. Ball Pein Hammer for $5.52 + Free shipping on orders over $35
Smart Note: This offer is valid until Saturday, Sep 7, 2019 or anytime before that. Check the price before you make a purchase.