The Christmas tree at my grandparents house. My Grandma had 9 kids, and each of them had an average of 3 kids, and a few of them had a couple kids themselves, making 30+ grandkids ranging from newborn to 40.
Each one of the circular ornaments on the tree has a childhood picture of one of the grandkids. My mom makes them. Every time a new grandchild is born, she makes a new ornament.