Step 1: How to Make It
to a pin with a rubberband. If possible, tape a rolled piece of paper on the end of the pencil,
and make a cut in it so you could place your rubberband easier.
Step 2: How to Shoot
This picture should discribe how to shoot the gun.
Follow the picture and you should get the idea!
Step 3: If You Don't Have Any Cloth Pins
If you don't have any cloth pins you could still make a rubberband gun out of pencil and rubberbands if you go to this link: