parody. One such example is Michael Rex's The Runaway Mummy. Rex's young mummy is a humorous contrast to Margaret Wise Brown's The Runaway Bunny. The mummy, like the bunny, seeks ways to tease his mummy (yes, incredibly lame on my part) by imagining himself as different creatures and hiding from her. Rex's coup de grace comes in the latter end of the story when the young mummy imagines himself as a creature that is incredibly hideous to Mother Mummy. It's so hideous that I can't mention it here.
Reading The Runaway Bunny followed by The Runaway Mummy would be an excellent lesson in comparing texts and characters. You could include graphic organizers such as Venn diagrams or double bubble maps in your lesson.
Now if we can get Michael Rex to write a parody of Love You Forever.