You can use trash bags to make amazing Halloween decor! Trash bag spider webs are a fun and easy project. Cover your porch in spooky spider webs with this easy tutorial (step by step instructions and video tutorial).
Mystery Bowls: Fill separate bowls with baggies of pudding, cold pasta, and peeled grapes, then cover each bowl with black felt and place bowls on a table. Have kids take turns closing their eyes and sticking their hands into the bowls to feel the different "body parts" in each one.