Sports Authority offers the Taylormade Lethal Distance Golf Balls 12-Pack for $24.99. Add two to your cart for an in-cart price of $22.50. With $6.99 for shipping, that's $1.23/ball and the lowest total price we could find for this quantity by $31, although we saw it for $6 less in May. Deal ends today.
Of note, you can bag an even better deal by ordering five 12-packs for an in-cart price of $56.26 with free shipping. (That's 94 cents a ball.)