You don’t have to worry about what to do with garbage if you don’t make any. Generations of people in Japan have used a fabric-folding technique known as furoshiki (f’-ROHSH-kee) to wrap gifts any carry groceries, among other things. Furoshiki eliminates waste-like plastic bags and wrapping paper. It is reusable and can be used for many different things. You can do an online for furoshiki videos and diagrams for folding to give your students an idea of the process. Of course, the real fun is in trying yourself. Start your search for ideas at www.furoshiki.com/techniques.php
Each children needs a large bandana or scarf (thrift stores and Grandma’s closet are great place to look). You can have them make a craft that they then wrap in the fabric or have them make their own bag. You can also have them practice wrapping different shapes like books or cans. See how creative they can get with folding and knotting.