I am a HUGE sentimentalist. I once read about this lovely tradition regarding Christmas Tree Decorations. You buy one decoration for your child each year, then on the Christmas that they move out and are in their own home with their own Christmas Tree, you then make them a gift of all the decorations you have accumulated for them over the years and they shall have a wonderful start to their very own tree ornament collection. One that is full of symbolism and magic from memorable Christmases as a family and a building block for them to then add on their own offsprings ornaments, should the idea take their fancy.
Therefore, each year, a new decoration is accumulated. My Mum actually likes to be involved and this year we were out shopping and she came across this cute little guy in Asda: