Curses
Are your favorite words that might be censored in this article? I know mine is. Here is a pen for just those words. This unique and pointless pen writes only curse words. Why would you want a regular pen when you could use one that will severely limit your vocabulary while making you seem uneducated and ignorant?
Who needs any of those other words anyway? I am sure you can say everything you need to communicate using curse words alone. That way, there is no need to switch back and forth between pens. You can just write out what you want to say using as many or as few curse words as possible. It is that simple.