The Butterfly Knife Pen is a Street Legal Writing Utensil

 - Sep 7, 2010
References: thinkgeek & walyou
Now you can satisfy your burning desire to own a Butterfly knife without the fear of getting in trouble with the law, thanks to the Butterfly Knife Pen. This pen is designed just like a Butterfly knife to let you live out your wildest and "stabbiest" dreams.

The Butterfly Knife Pen proves that anything you can do, I can do in ink. Check out the video to see the pen in action, or click on the links to pick up this badass pen today.