We want to construct the head of the Octopus with a (semi)transparent illuminated brain part. Therefore we will use the following approach: some thin transparent plastic is heated and then pressed against a massive form. The result will be the half of the form pressed against the plastic disk. So we will have two halves,each of one side of the form.
We decided to take clay as material for the form. So here are some pictures of the result from a three hour pottery session of Dilek and me.
So our result will be a transparent plastic helmet, which we can then design. We are already sure that in the back of the helmet will be drilled many small holes to prevent the actor from sweating to death.