Takes 60 seconds from clicking on the link to receiving an email w/ the promo code. No apologies if someone else already posted this here, as I am search impaired.
https://www.centuryinthemaking.com/sweepstakes.php
Congratulations! And thank you for participating in the Century in the Making promotion, presented by American Airlines. American Airlines is pleased to offer a 10% discount off your next trip! This offer is valid for travel from the 48 contiguous United States to any destination worldwide, for up to four (4) people traveling together. This discount may be used for ticket purchases made between March 1, 2010, and May 31, 2010, for travel between March 1, 2010, and May 31, 2010.