Can anyone who ties this fly tell me what they use for the bead? The largest glass seed beads that I can find seem too small to me and any larger glass beads that I can find have a hole too small to fit on a hook. Is it a plastic bead or maybe a red colored metal bead? When I do a web search I find alot of fly shops with it in their catalog and alot of talk about what a good pattern it is but no instructions for tying it.