Yes, something even as simple as a pen is a reflection of who you are.
Do you pull out a plastic pen that is missing the cap and skips and splotches ink? Does this make people feel that you will deliver quality in your dealings with them?
Or, do you pull out a finely crafted pen (even if you are in jeans and a T-shirt) and prove, even without words, that you have high standards?
The choice is yours. Black twist ballpoint with silver or gold accents.