Well I'm 1/2 German and we do celebrate a few things the German way. One is advent wreath with candles and the 4 Sundays before Christmas we sing songs and light them (well we haven't the past few years) but I would play piano and my mom the guitar.
We also did St. Nikolaus, on the night of Dec. 5th, you put out your shoe(s) outside yoru bedroom door. In the morning of the 6th, you hopefully have treats and not coal. My treats would be little things like bracelets or a movie, or some candy. So I loved it because it was like a mini-Christmas!
I also make traditional German cookies now, based on ones my Oma makes. Linzer cookies are so yummy!
My Oma makes them 3-tiered sometimes! She makes heart ones with a circle cut out on top so you can see the jam. The 3-tiered ones are ruffly like flowers.
These are mine from last year!
I plan on making them again this year. Here is one of the recipes I use: