This video shows you how YOU can make a rubber band gun, which the instructor assures is not difficult to make. You will need the end part of a Pilot G2 pen and two BIC pens. First, remove the inner parts of the BIC pens and tape them together. Then, remove the clicking mechanism of the Pilot G2 pen and slide it on the end of the two BIC pens. To fire the rubber band gun, put the rubber band in the clip of the G2 pen and hold the clip down so the rubber band can not slide out. Then stretch out the rubber band to the end of the BIC pens. Finally, release your thumb.