Goldstone is one of those materials that can added to glass for some extra sparkle. It consists of copper filings suspended in clear glass. If worked too hot in a direct flame it will appear to be rust colored or brownish instead of sparkly gold. I've been very pleased with the goldstone I've been using. I heat chunks of it in the flame, case it in clear that is the proper COE for the glass I want to use it with, and pull it out into stringer. I just love the glittery results!
On one of the glass forums that I belong to there are often "exchanges". An exchange is where you send trade a piece of your work with another artist. I like to join exchanges that offer new challenges for me. That might be in the type of work or the style. Here is a bracelet I made using a finger weaving technique developed by Robin Atkins. The real challenge for me was making the sculptural flower beads. I'm pretty pleased with how it turned out!