I have always felt like holding a Christmas ornament is like holding a memory in your hand. One of my favorite parts of Christmas growing up was the trip to the Hallmark store where my sister and I could select one ornament each that would represent "us" for that year. Whether it was Miss Piggy or a cheerleading bunny (both of which I still have and hang on my tree), those ornaments represented an interest at that point in our lives. One year I picked a penguin on a block of ice. I have no idea what that was supposed to represent for 1982.
Our tree holds many of my childhood ornaments as well as those from our many travels. I have a shell from Aruba, the Golden Gate Bridge, Hawaiian flip flops, and of course numerous Red Sox ornaments (thanks to Kev's students).
Of course our babies are all depicted on our tree as well. I cry a little each time I hang Boo Radley and Nomie's ornaments on our tree. Laugh as I hang Sam's ornament - one that I got in 1985 - as it is a bit cross eyed, just like she is. Clyde has a saddle, complete with stirrups. Good greyhound ornaments are harder to find. Seka's ornament looks just like her. Roxy, is depicted in pewter.
Our collection grows every year. I'm always on the lookout for new animal oriented ornaments in the hopes that one day we can have an entire tree dedicated to our babies.