[Eileen]

I did just search for the pleated beads, and saw some that people had encased with a thick twistie made with thick clear on the sides of an opaque paddle, wrapped around a donut bead, and melted down. I'm not sure if that is what you mean or not.
Maybe post us a link to one you have seen, so we can see the exact bead? If it is a common technique that isn't particular to one bead maker then hopefully we can help.,