Easy-Weave Newsprint Basket -- not these baskets, but I'm thinking about the prospect of framing an entire children's grade of one project in newspaper. Like newspaper for the mat, and then construction paper for the frame.
Lay down big puzzle pieces and spray paint over them. Wait until they dry to take the off. These would make beautiful autism awareness shirts. Autism Speaks is bad news bears for actual autistic people! Cool shirt though.
Balloon formed papier mache bowls covered in fabric! Can also be done over a bowl to give it the flat bottom necessary for placement on a table. Just put a thin coating of petroleum jelly on the bowl for ease of release when papier mache is dry.