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

: You can find " The Simple Screamer ," a classic guide to papier-mâché, for free streaming on Internet Archive . If you'd like to try a specific style: 15 Second Paper Screamer : 4 Steps - Instructables

: For decorative "screamer" characters, platforms like Pinterest host templates for various papercraft figures.

: If you have a 3D printer, you can download free "screamer" whistle files from sites like Thingiverse.

: Fold about half an inch of each end of the strip outward to form a "T" or bridge shape.

: Fold the paper strip in half so the two short ends meet, and crease the fold.

: 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

You can create this loud toy in seconds using a small scrap of paper.