TOTD: Mine is of a beach, with a big palm frond in the foreground.
I change mine a lot. This is it now:
I have a painting called "Found" as my screen saver. It depicts an old fashioned Collie rescuing a lamb in a snow storm. I have had several dogs who exactly match the look of the dog (size excepted). I have a mouse pad depicting Our Lady of Guadeloupe at work even though I only use an optical mouse with a thumb ball. It drives some crazy. :D