Image courtesy of the website The Writer's Edge
I have one or two glass fountain pens in my possession... somewhere. I used to love the feeling of writing with this type of pen, needing to stop every so often to refill the pen by dipping it into the ink bottle. I collected inks and bottles, never using the bottles because they were too nice to mess up with the ink. At the time I also had to keep all my letter writing items in a portable box and any ink that wasn't in a sealed container would have made a huge mess over everything.
I'm thinking the glass pen would be fun to use for drawing. I have a hunch where they are... unfortunately that hunch is the basement and that is the black hole of our house.