I think my favorite has to be the thing my aunt made me.
It's a framed "Certificate of Appreciation" - from the dogs.
Not only is it special because it's "from the dogs", but she's NOT a dog person or an animal person whatsoever. The fact that she took her time to make ME something, from my dogs, including my dogs, means more than any store-bought item.
Her and I have grown a tad bit closer now that she's learned that my dogs are a part of me, and mean the world to me. Although there was a few times where I had to hold myself back from saying something to her during her visit, and I know there's a few times she's retrained herself from doing something that bothers me. :p