If you are wondering about these chalk graffities at people's doors. These blessings are done by children dressed as the three magi on 6th of January.
This is probably the largest ‘rum ball’ that I have ever seen. A local speciality that can be bought in the bakery right in the heart of town – as part of many other bakeries that looked as good!
As Dormagen or Zons is nearly in the middle between the two cities of Cologne (Kölsch) and Düsseldorf (Alt) you can get both beers in restaurants, as here in the Cafe am Rheinturm.....