All of the pendants here were experiments using the Bubble Bronze Patina Glassline Pen from Warm Glass. Unlike the other colours of glassline pen, when heated the bronze line produces a line of bubbles rather than colour. The thickness of the pen line determines, to some extent, the size of the bubbles produced. This is a much more reliable way of introducing bubbles into a design than using, for example, sodium bicarbonate!
The first one I made was using a pale grey glass - it was designed to be as slim as possible and so used two layers of 2mm glass. So it is not a surprise that it 'waisted' slightly during the heating process given that glass likes to be 6mm thick.
The hanging loop was made from a loop of 1mm fine silver wire which had the ends fused together. The loop was then turned into a round loop using a small round mandrel, hammered flat and inserted between the two pieces of glass so that it was fused in place.
Some small test pieces showed that these bubbles only worked if done between lightly transparent glasses - if done between opal/clear glass, the bubbles were almost invisible.
This next piece is a pendant I wear a lot - bubbles between 2 rectangles of clear glass which has been sat on a piece of sea green (two pieces of sea green would be too dark).
I then made another one which was meant to be a piece of fun along the same colour lines, but with thin copper wire providing the red strands together with a fish cut out of thin silver sheet and patterned with punches.
The next one experimented with layering of bubbles between clear glass on top of 2mm neo lavender transparent glass. It is possible to see some depth in the design by interlacing layers of bubbles in this way.
Finally I had a try with reactive clear glass - this reacts with copper which is found in the Bubble Bronze Patina Glassline Pen.
So a line of bubbles was drawn on a piece of sea green, then a piece of clear transparent glass placed on top before having lines drawn on it which are spaced differently. This was then topped with a piece of reactive clear glass.
However I had forgotten that reactive clear glass also reacts with silver - and so the top of the pendant has turned an ugly yellow from the silver hanger. Apart from that I think there is potential for developing these two different effects further ... but I am not keen on pendants hung from a drilled hole and I don't like hangers glued on to the back of a pendant, so I will need to come up with a cunning plan sometime.
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