Plural Nouns

Need a simple idea for plural nouns?  After you've taught the basics of -s and -es, have students apply what they've learned using a foldable.  On the outside flaps students illustrate a singular noun and label the picture.  On the inside flap students change the singular noun to a plural now and illustrate/label the pictures to match the plural noun.  Differentiation is with student choice of nouns.  You could extend the learning task by having students use the plural noun in a sentence on the back of the foldable.