When I was little, my great-grandparents always bought me and my cousins matching Hallmark Christmas ornaments every year. When we moved away, they started sending money for me to pick out my own ornament instead (not as much fun, because now mine didn't match). I think that continued until around when I turned 18? I know it was after I started driving, because my ornament money ended up in my gas tank at least once.
That's one I need to figure out how to start up again, at least for our house.