Craftsman MD-4F-S 4-lb. Sledge Hammer for $9.99.  Order online for in-store pickup at Sears to lock in the price, ensure availability, and save on shipping.  Otherwise, shipping is $6.95for a total of $16.94 shipped.  Here is a screenshot for your reference.  This hammer features double faced forged head and polypropelene handle with fiberglass core.