Call for Green Makers of All Ages! Show and Tell (and sell). This particular Makers event is designed to give Makers of All Ages, who are dedicated to responsible environmental stewardship, a place to show and tell (and sell) what you make and why. There are creators of all ages out there who use materials that promote a circular economy, upcycle waste-stream-diverted materials, and re-imagine uses for existing materials. Some makers create music, stories, theater, performances, and other art that requires very few material things at all.