Pilot makes a disposable fountain pen called "Varsity" they sell for about $4 each. I haven't tried them, but I have an English teacher/poet friend that uses them for everything.
I heard a piece about this on NPR about a month ago. What I found very interesting was that the bacteria help you to digest foods, so one person's personal bacteria may allow her to receive more energy from say a piece of pizza than another person with different bacteria. Also very interesting was that by traveling and eating food from different regions you can pick up different bacteria and possibly gain even more energy from the foods you eat.
As a Georgia resident, my opinion on this is that if they're still dangerous we should keep them in jail. This half-assed stuff just weakens civil liberties for law abiding citizens.