The Loopy Love Blanket is so fun to make! The pattern is easy to memorize, the stitches just fly by, and the end result looks way more complicated than it should. And in 3 colors, you can change colors every row and never have to cut the yarn!
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.