The North Pole via Amazon offers the The North Pole Ice Ball Maker Set for $19.95. Coupon code "S3TNEN8S" cuts it to $1.99. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $6.67.) That's $2 under the lowest total price we could find for a similar set. It includes four different mold types.