This is a riot, there is now a disposable fountain pen! A friend told me about it so I went and got some tonight. It's the Pilot Varsity Disposable Fountain Pen. They're a little toothy in the nib, but the body is light, slim and balanced and the mediumish nib leaves a nice, wet line. It dries well and does not bleed through the paper.
If you've had a hankering to play with a fountain pen again but aren't up to the whole bottle/piston/vac filling thing, this is your new best friend! Cool colors look great and at $2.00 a shot, if you mangle it or lose it, you'll shed no tears.
We may be able to convert those gelheads yet!