Yesterday my boyfriend told me that he had looked - but that all the stores were out of advent calendars.
He hadn't ever really used them growing up but he wanted one for his daughter.
So I went down in his basement and made one out of the first box I found.
These are it.
Super simple. get two pieces of cardboard and cut however many holes you want out (this calendar has 31...) and then put the other cardboard underneath, open the wee doors, mark where they are and paint away.
Watercolor with a white is good for cardboard and I used a sharpie EVEN though I know they fade with time.