I bet that stuff is lethal.
One thing we have adopted in this house this year for Christmas, is something like these:
Wooden Advent Calendars from Oodles
Or at least our own homemade versions anyway. It's fairly simple and cheap to achieve and in the long run would save you a fair amount if you have advent calenders every year, like we do.
The best bit, is that for 24 days leading up to Christmas you get to be as inventive with the daily treat as you want, instead of being stuck with a stupid picture or out of date chocolate.