My 3 year old daughter loves doing crafts, so the two of us made this advent calendar from old cardboard gift boxes. We spray painted them, then I cut out circles from scrap booking paper and with foam tape taped on the circles, then painted the numbers on for each day. I just attached to the end of a book case in our living room with poster stick it, easy to remove when done. I filled the boxes with things my daughter would love small suckers, erasers, pencils, hot chocolate, gum drops...The excitement of what box she gets to open every morning till Christmas is priceless! I will save the boxes and do again for years to come.