Chesty, I'll ask PapaPizza later how to attach them, he'll know.
Nikolaus is St Nick. He is basically Santa, that comes on the 6th, as on Christmas day the presents are given by the Christkindl (the angel) and not Santa. Yes, it is where the children scrub their boots and leave them in front of the fireplace and then in the morning they are magically filled.
Traditionally he brings chocolates, but many people nowadays add a little present or two or three on top. I'm going to tease DS and give him one of the VTech Switch and go dinos that he has asked for. Only one of the little ones and big brachiosaurus will be the surprise for Christmas. I just love all those extra traditions, it means I can spoil him and the celebrations are more than a day.