In school, it was always fun to turn the contents of your pencil box into a weapons of classroom warfare. Rubber bands were always a necessary component, as they not only provided the spring to most projectiles, but in a pinch, it could be used by itself. Now, unless you had a very steady hand, your rubber band might not find its target. You could craft a rubber band shooter, but these days you can get a pen that is designed to launch those rubber projectiles.
The problem with most crafted launching tools is that it usually required permanently altering the thing you started with. This meant that the teacher would be quick to confiscate it. This Rubber Bandit is clever because it appears to be an ordinary pen, and thus won’t be suspected. All you need to do is loop a rubber band around the notch at the tip, then stretch it to a little notch by the clicker. Just aim, then give it a click. With any luck, this $5 pen will help you find your mark.