what exactly do you mean by pen!? do you mean the fenced in area where we stick animals and sometimes children?! because if that's the pen you mean, no I do not have my own pen, so therefore, I do not use it.
however, if you meant pen as in the writing utensil, then, yes, yes I do have my own, and I do use it quite often. I have quite a few pens, some for writing, and some for drawing...depends what kind of mood I'm in!
Next likes bananas