This fall, I accidentally purchased 500 tiny brown bags instead of regular-size lunch bags. I stuck them on a shelf thinking they would be good for something, and was thrilled to come across paper bag books. A staple in the altered book art world, paper bag books are simply folded bags hooked together. The flaps and pockets become interesting places to hide surprises and the craft paper is an ideal journaling medium to build on. My little bags became the backdrop for a lesson on landforms that started with snack bags and ended with iPads.
https://www.scholastic.com/teachers/blog-posts/meghan-everette/paper-bag-books-and-ipads-old-meets-new-landform-learning/