A Family Tree Skirt

Although I know that we can't possibly implement all of the Christmas traditions that I would like, every now and then, I come across an idea that I really wish I had seen when the kids were younger.  I am sure that ours would not have turned out as nice as the one featured in this article, but I do wish that I had made a tree skirt with the kids' handprints.  How fun would it be to pull this out each year and see how they have grown each time you add a new set of handprints?  This could also be a fun activity for grandparents to do with all of their grandchildren one year.