Taking strips of the deflated egg membranes, I pressed them to the surface of a vaselined vintage aluminium jelly mould. To my suprise, the membrane bonded together really well and has continued to hold its form.
It is worth noting that the addition of vaseline as a release agent causes the membrane to be less brittle and have a slightly shiny, translucent finish rather than the white, matte, opaque surface of membranes that have simply air dried.
Impression of Toby jug face
This trial was attempted without any release agent, so it is unsurprising that the membrane, which shrinks when it dries was difficult to remove.
