I was looking into setting my PMP business cards. I found the guidelines on the requirements if I wanted to use the PMI logo but could not find a website that had a template I could use. With that being said, I just ended up making my own. Feel free to use it. Remember to follow the logo guidelines: http://www.pmi.org/~/media/PDF/Media/PMP_logo_guidelines.ashx
Here are the formats I have: Illustrator and PDF (a form to make it easy). Enjoy!
PMP Business Card Form (PDF)