Glue multiple strips of colored paper (like brown or tan) together using super glue to create a thick "block".
If you want something that spins as it falls, try a basic cut: Cut a strip of paper (about 1x6 inches). Cut a slit halfway down the middle of the strip. Fold the two resulting flaps in opposite directions.
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)
For hobbyists making scale planes, you can "laminate" paper to act like wood.
Add a paperclip to the bottom for weight. When dropped, it will spin like a helicopter.
Take every other corner tip and bring it to the exact center point. Do not crease these folds; keep them rounded so they catch the air.