Started to play a little with glass and figured why not make a few nibs.  Most write pretty well, but made need a little smoothing.  Was able to fit one in an existing section I had just to try it out.  May even be able to use with a convertor if I can seal everything off.  Plenty of things to try, but here is my first.  Here's a picture of the pen as well as some of the first batch of nibs.