A few nice ballpoint pen images I found:
My doctoring pocket
Image by churl
When I’m in the hospital, I carry around a pretty cluttered pocket of pens and junk, but in the interest of penmanship, you might like to see what I’ve got. From my left to right: Cross Apogee, Waterman Hemisphere ballpoint, Sharpie black, and Waterman Harmonie. The big round thing is a telescoping reflex hammer.