Hobie,
Years ago, in a craft store, I found a super fine glitter in a clear glass "vial" that is amazing. There were about 4 colors in the pack but I went with the sort of clear/flash color. I mixed it in with my envirotex when mixing and applied it. Came out great. Get a nice flash on the whole plug. It is NOT like the shiny stuff you apply to the tops of plugs. It is super-fine. Just my opinion