These shows can be quite lucrative, especially at private schools. They are usually one or two day fairs. You could probably make birthstone rings, gemstone rings, small pendants, and rings in the school colors all day long. Many times they won't or cannot take on small jobs or jobs that would require a simple wire setting. Plus you might sell them some of your work.
Antique shops buy lots of jewelry, old, new and collectable.
So don't be afraid to visit them and show them your wares. They love collectibles with little settings on them such as tumble stones, gemstones, gemstone carvings, cameos, limoge etc. You may or may not be new to the Internet. If you are totally computer literate and know the ins and outs of the Internet, you are way, way ahead of most of the rest of us because the Internet is the greatest tool ever created for the home jeweler or crafts person. For the first time in history a craftsman can produce his wares and present them to the world for just a small cost.