CAUTION. I am not responsible for what you do with this,and don't point at faces.
Step 1: What you need
-a pocket knife (w/a knife and sander and a leather puncher)
-dremel (if you don't have the sander)
-Paper Mate pens (eagle)
-rubber bands i would use the ones that are from rubber band guns(pistols)
Step 2: Dissasemble and cut hole
Step 3: Fitting the ruberband
Step 4: Making the arrow
-Heavy Duty. Heavy Duty is an arrow with an extra cover on it.
-Light. Light is a plain arrow
The basic of making the arrow is that it is the ink cartridge from the Paper Mate Eagle pen.