Starbucks has this lovely advent "calender" which consists of magnetic boxes that stay on a chalkboard. They have little dark and milk chocolate covered graham crackers inside each one.
What I especially love is that they are reusable! Next year I could add my own goodies and/or slips of paper with activity ideas (ie: Look at Christmas Lights as a family, Watch a Christmas movie, Bake Cookies for neighbors, etc). I might even get my act together and add them for this year too!
The kit was $29.99 and included a $5 Starbucks gift card. Go get one before they run out!