maya*made: countdown calendar
Super Easy Memo Board Countdown Calendar
Kids' Craft & DIY Ideas
Santa Countdown Calendar --- I'd make this with an Elf peeking instead of Santa... Directions on http://www.flamingotoes.com/2010/11/santa-countdown-calendar/
Kindness Countdown Calendar - make the holidays really special this year by getting your family involved in random acts of kindness.
Today's Fabulous Finds: Interchangeable Countdown Calendar http://todaysfabulousfinds.blogspot.com/2010/09/interchangeable-countdown-calendar.html#