It's Fasching (Carnival) week in Germany. At least in Baden Württemberg ( I don't know if its all over Germany). It is usually done before Lent. It has a Christian background, but I don't know the whole story. This Carnival involves celebrations and parades and people often dress up with different types of costumes.
For children, this is a time for most of them to live their fantasies. When you listen to children in their make-believe plays, you can hear all the things they pretend to be - Pirates, Dragons, Superman, Police, Princesses, Fairy, Butterflies, and it goes on and on. Thanks goodness they can't be some of these things in real life.
Our Kindergarten has celebrated their own and it was great. Most of the kids dressed up and were treated to a buffet which was contributed by their parents.
Here are some of the pictures: