He’s been messing with my Dixon low D with flute head, and he decided to make his own. He’s 11. He cut a mouthpiece hole (I don’t know the term) then he made six holes, and covered the head-end with tape and paper.
It made a sound like a pop bottle being blown but the fingerings definitely changed the pitch. It was cool.
Sounds like you have a talented son there, John! 
That’s a cool kid
That’s awesome… what a creative spirit!!
Sounds like a bright boy there, and perhaps a future Whistle/Flute/Pipe maker.
Definitely. Keep encouraging him, John.
Best,
Paul
Me ------> (runs out and reclaims all the wrapping paper rolls from the recycling bin)
Robin