① Take a small yogurt straw and clamp one end in a vise, not too much.

(2) Turn the gas stove to low heat, clamp it with a vise, about 15cm away from the fire, and shake it back and forth in circles, so as not to let the torch straw burn soft. Repeat for about one minute.

③ Take out the straw, open the vice and calcine for 3 seconds, then immediately clamp the place in front of the straw and repeat it for about 3 times.

(4) Cut off the excess part of the straw and blow it to see if it rings. If it doesn't ring, sand the flat end of the spoon with sandpaper until it rings.

⑤ Tie the thread at the back, be careful not to be too tight or too loose, so that it can make a sound.

The sound of the whistle is basically the same as that of the suona whistle.

Please adopt it, thank you! ! ~