Sky Shout Tube that makes sounds as it is moved. The more you move it the louder it gets!
Extra-loud noise maker that makes a range of strange rumbling sounds. With the spring-like end facing downwards, start moving the tube from side to side. As the spring moves, it reverberates sound up into the tube that then produces some impressive rumbles. Experiment with different movements to get different sounds
Always take care and use close supervision