In the time after christmas especially kids & teens (at least now) would dress up in masks, go door to door and sing for food, bevrages and snacks. In the old times the ones who dressed up would sing for leftovers such as christmas cookies. If they got christmas decorations they would brawl like animals. Some also say it was used to scare kids.
This is a long tradition in the nordics, and can be traced back to 1546, Sunnmøre, Norway.
The tradition is not christian and can be traced back to the middle ages. The tradition has roots in norse traditions, but has gained some christian roots too.
These beautiful buckets were used to store milk, butter and porridge. The were often carved or painted in the traditional art form known as "Rosemaling". The buckets used for butter rarley had decoration. The ones for porridge tend to be decorated the most as they were used for weddings or funerals.
Rosemaling can be painted on anything, mostly we see it on objects such as cake boxes, chairs, cabinets etc.
Here you can see the traditional art form on walls, roofs & beds. During this time, rosemaling is quite common in norwegian houses, but mostly for smaller objects. However a while back the art form was also used to decorate houses, curches, cabins etc.