In this Weapons video tutorial you will learn how to make an airsoft BB gun out of household items. You will need a bog pen and a big pencil. Remove the refill from the pen and remove the cap from the other end, so you are left with the body of the pen which is like a barrel. Then take the pencil, snap off the front end, remove the refill and cut a slit on its back end. Make sure there is no lead in the pencil refill. Now slide in the pencil refill into the pen body. Take a rubber band, place it in the slit of the refill and stretch and pass it around the other end of the pen. Put a tape around the rear end of the pen over the rubber band. Now repeat this step with another rubber band. Now you can put a pellet at the open end of the pen and pull the pencil refill and shoot. That's it!