This is the result.
These pieces were made by cutting pieces of cellophane and fantasy film and laying them together (with strands of angelina sprinkled over the top, plus afew seed beads on the third one) between two pieces of parchment paper (baking parchment) then ironing lightly until the cellophane started to crinkle (use a silk setting and keep checking what happens - it's very easy to destroy the cellophane if you over-iron it).
The second picture shows the other side of the pieces.
Now I have to decide what to do with it. Or maybe I'll experiment some more - I've just acquired a heat tool that I'm itching to use.