We all have bad days and this was one of them. I spent the whole afternoon making the layers for a piece I was going to call 'Turquoise Shell'. I decided to double up for baking and placed another baking tray of work on top, separated by a layer of fibrefill wadding. I was horrified when I took the trays out of the oven to find this 'burnt offering' underneath. Strangely, it did not really create a burning smell but the colour has totally changed and there is some fascinating bubbly texture on the surface.
I guess I will have to keep this as an example, for teaching what not to do in my workshops, and make the piece all over again.