If you want to learn more about Face Jugs see the links below. This lesson is a great way to discuss many topics and subjects not only history but the Studio Habits of Mind. Are you familiar with them? If not, check them out at this link:
https://glittermeetsglue.com/studio-habits-of-mind/ She has some stellar information on her blog on this topic. For more details on how these were made see the Soul Sister Link provided below.