Simple Halloween Kids Craft Your kids could make several then string them up and hang down the hall way. You could always just use construction paper instead of the foam, if you're just wanting to use what you have on hand.
Rain Sticks for Kids to Make - Happy Hooligans DIY rain sticks are a great kids craft idea to keep kids entertained during weekends. especially on rainy days! If you have a passion for arts and crafts you really will love this info!
Bottle Bank via Martha Stewart: transform a used plastic bottle into a cute piggy bank. Could use same idea to made little containers for kids to store their collections too (use bottle with wider opening and don't make slot)