We read many books by Eric Carle and learned how he illustrated his books. Although we could not decorate the paper as he dies, we used tissue paper and liquid starch to make some of our paper for collage. We also used finger paint on paper to create textures on paper. We also used those papers.
We sorted the papers by color and then chose pictures to copy from our many Eric Carle books. Even the teachers got involved. Collage is so much fun. You should try it sometime!