Ray....here's a link to Bullseye's Technoteshttp://www.bullseyeglass.com/pdf/technotes_tipsheets/TechNotes_02.pdf
All the info there you need to make one. I used the Paragon Caldera with programable controller but it could just as well have been done with a Hotbox kiln with manual controls.
I need to play around a bit with different colors and temperatures. They all behave differently. I used coarse black frit but I could use strips of flat fusing glass as well.
HP.....you vary the thickness by the speed you pull it from the kiln. It won't matter what you put in the kiln: strips, rods, frit...it all just melts down and runs out the bottom of the kiln. With frit, you have to put a piece of compatible flat glass across the hole to keep the frit from falling out. Once it all melts, there is enough weight for the glass to start flowing from the kiln. At that point, you can start pulling and shaping it.