Presenting (an attempt at) a deconstructionist reading (ah hem):
The text: Mary had a little lamb, her fleece was white as snow. And everywhere that Mary went, her lamb was sure to go.
The reading: So Mary had a "little" lamb, but in fact, the lamb was quite big in Mary's psycho-spiritual world, at least, since it followed her everywhere, becoming, as it were, a part of her socioeconomic psyche. And the fact that its "fleece" was "white as snow" suggests that this concept of whiteness and innocence was like a mantle that Mary wore wherever she went. The lamb's fleece was like the potential mantle that Mary would wear, would she remove the fleece from the lamb's body and turn it into a garment. But the fleece was not actually pure white or innocence, since it was "white as snow," which we all know gets quite grimy very quickly after it falls to the ground. Thus, Mary's little lamb represents both her spiritual innocence and her physical venality. Poor Mary.
Sample sentence: Deconstruct this.