Celery flower art is another great Mother's Day idea or just a simple art project for the classroom. I think the idea of using food to create art would be an interesting project to bring to the classroom and have students work with and experiment with.
This makes a very pretty paper weight! The Yarney Stone - brush a ring of tacky glue around the middle of a clean rock. Starting from the center, wrap yarn around the rock, spiraling toward one end. Add glue as you go. Repeat process on the other side.