I grabbed an old cookie sheet from under my oven and cleaned it off real well. Then I painted the back side of it white with a foam paint brush.
Then I covered it with festive cardstock and drew a 5x5 grid in the middle.
I had a bunch of really cute gift tags that I numbered 1-25 and used for the countdown. I stuck a thin magnet on the back of each one so they are easy to remove and replace.
Then, I tied hemp rope to the gift tags to spruce them up a bit.
Once that was finished, I wrote "How many days until Christmas?" on it, like the following pictures show, and I added some buttons and a ribbon for accent.
Overall, it was a very simple project. I'm so glad that I finally got around to making it. Even if I do only get to enjoy it for 12 more days...(11 now since it is already 1AM).
Oh, I almost forgot to mention, the magnets are awesome because whenever you take a number off of the calendar, you can simply stick it to the inside of the pan. So convenient!