: Place your mouth against the paper and blow firmly. The air rushing through the slit will cause the paper to vibrate rapidly, creating a loud "screaming" sound. Alternative: The Paper Popper
Making a paper "screamer" is a simple DIY project that uses air vibration to create a loud, high-pitched noise. No software download is required, as it only uses basic physical materials. How to Make a Paper Screamer Screamer Free Download
: Use scissors to cut a small half-inch slit along the center of that fold. : Place your mouth against the paper and blow firmly
: Fold about half an inch of each end of the strip outward to form a "T" or bridge shape. No software download is required, as it only
: Use a piece of paper about 1 inch wide and 5 inches long (though exact size isn't crucial).