When I showed my friend, she was like lets make them! OMG I am so happy with the results. I made 2 one for myself and one for my mom. My friend made one for herself. We had fun decorating! While I stuck closer to the original design, my friend changed hers up a little. Either way they came out awesome!!!
You can find the details on them measurements and assembly by visiting Melissa's Stouts website or clicking on Calendar Countdown.
Not into Halloween, no worries, Melissa has a sample of one made for the holidays using the Candy Cane Lane suite from Stampin Up. This calendar doesn't have to be a countdown but it can easily be made with an everyday day theme to have displayed for a general monthly calendar.