Pasta skeletons - Kids can bone up on anatomy and create a fun Halloween decoration at the same time when they make a skeleton out of noodles. With an illustration of a skeleton as a guide, they just need lots of dried pasta, white glue, and constr.
Filth Wizardry: Recycling containers with crochet. So fantastic and so easy if you have basic crochet skills. All you need are empty plastic containers (don't need to be clear), a hole punch, some yarn and a hook!