I really love the idea of stocking holders and even bought some one year, but I just do not have a good place in my small home to hang them. So our hang on a door with nails.
I like the idea of building simple ones with pieces of wood. I can very much see printing out digital scrapbooking paper of my choice and decoupaging it onto the wood. The photo could be clipped on as in this example and changed every year as the child grew, or it could be decoupaged on too.
You could create anything with digital scrapbooking supplies to print and adhere.