A "paper banger," also known as a paper popper or flapper, is a simple origami toy that makes a loud snapping sound when flicked quickly through the air. The sound is caused by air rushing into a folded pocket, forcing it to pop open rapidly. How to Make a Simple Paper Banger
To make the "bang," hold the thin, pointy ends (the handles) and throw your hand downward in a fast, whip-like motion. This catches the air and forces the internal flaps to pop out with a loud clap. banger
Bring the side corners toward the center crease to form a square or triangle shape with interior flaps. A "paper banger," also known as a paper
Lay your paper flat and fold all four corners toward the center line to create a symmetrical shape. This catches the air and forces the internal
You can create a basic banger using a single sheet of A4 or letter-sized printer paper. For a louder noise, some guides recommend using thinner paper like newspaper or a page from an exercise book, while others suggest heavier paper like cardstock for increased tension.