I set up an outdoor Nativity Scene with Stable and plastic figures of Baby Jesus, Blessed Mother and Joseph. I also have a few plastic animals as well. I also light up the scene. My wife sets up a Nativity scene in doors.
I always set up a NAtivity scene in my home, no matter the country i live in. I used to make a big landscape with clay, a running water river, well, bonfire for the shepherds, and of course, the unforgettable figurine of the catalan "caganer"
My parents put up a nativity outside every year. Sometimes it stays up until Easter. The plastic wise men, Mary, Joseph, camels, and of course baby Jesus all have light bulbs inside them and my parents turn them on at night. I'm always worried that a wind storm will blow the whole thing away. Baby Jesus could cause a lot of damage in the neighborhood if he got loose.
We have three! We have a small (fits in the palm of your hand) set that was brought from Germany, a standing one with a removable Jesus, and a large one that is set up on the blanket chest each year. Each year we tell the story to our son about the baby Jesus and all the people who took part in his birth from the angel to the shepherd boy as we remove each piece from the large display and talk about their portion of the story.
Right now we have a child friendly(plastic) Fisher Price nativity. I knew that I wanted a nativity in the house at Christmas,but I was afraid to have anything too dear that could get broken. Now we have something that the kids can interact with and I don't have to hover the whole time. The only drawback is that I sometimes find batman or sleeping beauty figurines incorporated into the manger scene.
No. We don't actually celebrate Christmas as such.
Our display is a Winter Solstice/Yule celebration of lights to banish the darkness of winter. For example, Santa Claus has his origins in pre-Christian celebrations. Likewise, the tree, wreaths, garlands and lights pre-date Christian traditions by many millenia.
I do not follow any religion. I lean more toward the older pagan celebrations in tune with the seasons and the wheel of the year. So you will find at our house a blazing lighted display that 'seems' to fit in with Christmas, but for us, it is not about that holiday--it is more in line with the ancient festival of Saturnalia.
We have things we have collected over the years. Things from different places and of course the things that I saved from when my kids were small and now things from the grandchildren. We try to have a good balance of secular and religious things. And yes, do have nativity scene (a small collect of different one) enough for one to go in each room (they are small-fit on a table. If there is a theme... it would be family memories.