When I was a child, there was a small musical instrument for sale at the school gate. About 1~2 cm. It is made of two pieces of iron in the shape of tiles, and its mouth makes a sharp sound. What is t

When I was a child, there was a small musical instrument for sale at the school gate. About 1~2 cm. It is made of two pieces of iron in the shape of tiles, and its mouth makes a sharp sound. What is that? ■ It's not a musical instrument. It's called Mimi or Whistle. Artists can play it, but the pitch is poor. It's not for sale now, but you can make it yourself. It's simple. Make it out of a thin piece of iron like this, with a wire in the middle. Be careful: don't let the child swallow it! !

The flute membrane is no good, it's too thin, and it will break when it gets wet. I think plastic film will do.