Propellers.7z -

Fold the square diagonally from corner to corner both ways to create an "X" crease.

Making a paper propeller can mean two things: a quick or a more advanced laminated model for scale aircraft. Method 1: The Quick Pinwheel (Spinner) Propellers.7z

Add a paperclip to the bottom for weight. When dropped, it will spin like a helicopter. Fold the square diagonally from corner to corner

Glue multiple strips of colored paper (like brown or tan) together using super glue to create a thick "block". When dropped, it will spin like a helicopter

Cut along each crease from the corner toward the center, but stop about an inch before you hit the middle.

Push a pin through all the tips at the center and into the eraser of a pencil. Leave a little wiggle room so it can spin freely. Method 2: Laminated Model Propeller