Actually the decoration foraging usually takes place around the end of November. We go to the woods to collect pine branches, moss, pretty leaves and whatever else we can find. Then the family gathers to make decorations.
Well, most of the time we're too lazy to go foraging, but we always have tons of gold sprayed pine branches from the previous years anyway.
Each person makes at least one decoration usually positioned on a log or in a small pot or basket. A ball of clay holds the candle(s), branches, cinnamon sticks or anything else your using for decorating. Et voila! The whole family has a bunch of moss with candles that they can put around the house to spread hygge throughout December. Never mind the mess...