Nabbed this from Gamefly's newsletter. While this isn't exactly "free", these things are expensive, especially for a 4 pack. Anyway, this is for anyone who likes there bawls. :lol:
http://www.gamefly.com/bawls/coupon.asp?cid=gn0708
http://www.gamefly.com/bawls/coupon.asp?cid=gn0708