Remember the wire wrapped bottle? Well here it is after the firing.
You can see the vertical lines left by the 17 gauge wire. The wire was loosely wrapped around the bottle so I imagine that if tightly wrapped you will get more pronounced lines. The wire also did not melt during the firing and had to be unraveled off the bottle after it was pulled from the ashes.
I also wrapped a line of heavy gauge solder around the neck of the bottle and near the base. The solder did melt and there was no trace of it after the firing. I think the solder has some interesting potential.
On the back side of the bottle where the solder was wrapped around the neck there were small patches of metalic maroon and a couple shades of blue and purple. It was a small patch but it was only one strand of solder. In any case I think the solder might produce some real interesting and beautiful results.
I did a little bit of research and solder has a melting point of about 360F and most retail solders contain approximately 60% tin and 40% lead. Perhaps it is the tin that produced the metalic flashes.
This bottle was not burnished so it doesn't have the nice glossy marble look, but the flame patterns and the contrasting colors make it extremely interesting.