The next technigue involed cutting gold leaf shapes and sandwiching between two sheets of glass. Believe it or not this started out as pale yellow glass and is now a lovely orange whilst the gold leaf has also changed colour. Apparently you can never tell what the results will be until after the firing.
The next one uses a special sheet of glass(called frit glass) which is white with black squiggly lines running through it. You place this over a peice of plain one coloured glass and when the two are heated together they fuse like this. I used a pale pink underneath. You can just see the sandwich of the colours on the earing shown on the left of the picture.