Paper and a sturdy thin tube
(Sometimes found with tin foil)
Cut a rectangle strip from paper about
3 long by 1 wide. Roll the strip into a thin cone shape. Make sure
the cone has a very sharp point. Put the sharp end of the cone in
your mouth, twirl around and chew a little bit to make it soggy and
to ensure the end is sealed so that no air may pass through. Feed
the cone into your tube and tear or cut off any excess so that it
is flush with the end. Hold to your mouth and blow sharply. The cone
arrow will fly very far and fast. Do NOT ever aim at people or animals
as it could damage their eyes.
The best way to operate this device, as
with a pea shooter, is to first seal the tube with your tongue. Then
take a deep breath and pressurise your cheeks. When you are ready
to fire remove your tongue.