English Premier League soccer club Arsenal F.C. currently features a unique "Arsenal Online Store Advent Calendar" on its official team website. Fans can return to the team's site throughout the holiday season for the chance to earn new prize (driving return traffic to the site).
In addition, the advent calendar serves as a great way for team's to leverage their merchandise and product offerings in the team shop (offering discounts on select items of the day, etc.).
Organizations can find ways to take the concept of an online Advent Calendar to the next level by incorporating the products and services of corporate partners (enabling consumers the chance to win free/discounted items by checking back regularly during the holiday season for new items, etc.).
If you are looking to enhance your organization's line of merchandise inventory, Arsenal F.C. offers just about everything (from branded toasters to wine hampers to toy boxes) on their Official Online Store.