For a start, you would probably have to be like me, three score and ten, to remember "Magic Flutes" When I was just a "pup" my grand father gave me one. It was all metal. It fitted over the nose, and flush with the open mouth. By exhaling through the nose, I could imitate almost any bird call/songs. Have been looking for one for years. I understand that they were, at one time, reproduced in plastic. Can anyone help, please. Pipes