Hi Sandy,
We're happy to run jewelry project designs incorporating glass. The only type of thing we wouldn't cover would be something entirely made of glass, such as glass bead-making.
You were right, in that we haven't run much because we haven't received much in the way of project proposals. So if you have any metal, metal clay, polymer, or other jewelry designs that feature glass I encourage you to submit them.
Here's the link for submission guidelines.
~Addie~