Celebrate the Christmas Season with one of these Christmas advent calendars. What better way to start off the holiday season than to make a fun and festive Christmas advent calendar (aka a Christmas 'countdown' calendar)! Advent calendars are a great way to bring more meaning and cheery Christmas spirit to your holiday season as the excitement of December 25th draws near. So before the Christmas season is upon us get your DIY on with one of these festive, fun Christmas advent calendar ideas so you are ready for December 1st. Update: We've added to this list! Here are 25+ MORE