Playmobil Advent Calendar-Unicorn Fairy World. This Advent Calendar will appeal to both boys and girls. It comes with a themed backdrop that can be hung on the wall and once all the boxes are used you can use the backdrop for even more imaginary play. You can also hang the boxes over the backdrop on the wall. The Playmobil Advent Calendar has numbered boxes and the directions that come with the Playmobil Unicorn Fairy World Advent Calendar will tell you which item goes in which box. This is great because as each box is opened a new piece is added to the fairy world scene.