Exploding bags with baking soda and vinegar-science lesson. They take off like rockets!--kids would love this
Tissue paper flowers for drama. This is simple, beautiful, dramatic, inexpensive WOW! Round up your family & friends and it wouldn't be hard to execute.
DIY: recycled book art kit
remember for Halloween: "crazy hair" get colored chalk and soak the chalk in water then add it to your hair and its instant color and washable