In order to get some quick production of ceramic pieces on the go so that I can iron out problems with uder glazes, glazes, and firing, I made some press moulds.

I first made the clay pieces, working as quickly as possible to keep the clay damp. I then put them on a layer of Plasticine and built up a wall around it with more Plasticine.  

 I then sprayed lightly with silicone spray and poured in a mixture of plaster of Paris. (2PoP: 1H20)

When it had dried I simply removed the Plasticine and was ready to use my press mould.