How to make a Pen Weapon!

Ok so today I am going to be showing you how to make a pen weapon.
It will shoot through cardboard and pretty far.
so lets get started

Please note: this is my first ACTUAL instructable, so please bear with me if anything is not good, and feel free to ask questions in the comments.

THANKS

Step 1: Materials

You will need:
- a Bic pen
- Clear tape
- An elastic band