Here's my stitched piece of felt. Part of the children's learning outcome from this could be how to embroider running stitch, filling stitch and detached weaving, not to mention sewing on buttons. The buttons could be functional, used a as a joining mechanism between smaller pieces if we decided to make it that way.
And here is use number 567 for a vegetable net. Make a soap fish. Good way of preventing it from shooting out of little hands and becoming a projectile missile.