Oh also his family's Christmas mouse probably is a little older tradition. You see his mom wanted to find a way to keep all her kids entertained and able to spend more time on Christmas as a family. So that's how the Christmas mouse got started.
Oh and the thing about the Christmas mouse is that each of his siblings families had to find their own.
Personally, when we got married. For our first Christmas DH was so excited to start this tradition that we went to EBAY to find ours. Well it took a little work and DH liked so many of them that we actually have 3 versions. Well, technically 4 because during our search I found an ornament that was a mouse and Precious Moments. Score!
Thank goodness we finally found the one that DH remembered from his childhood and that's why we don't have more than 3 Christmas mice.