Kazoo (Spanish 'Turuta') AKA Kingzoo

This is my design for a kazoo (spanish 'turuta'). It is a very simple musical instrument and a really simple to use one. Very clever and funny to use, and very popular here in Spain in almost any party. So easy to use that even a kid could make wonders with it. It just require a piece of waxpaper, cooking film, or even a piece of a plastic bag. Put it inside the cap (just press the cap into the hole). Then you can use your vocal strings (hum) to make the membrane vibrate and output your voice wi