Plaster Mold

 First you imprint what you want into the clay. Make sure the clay is quite thick and you have a big border around the imprint.

 Then, being very careful, lift up the sides to form walls. Make sure you do not make any fingerprints around the imprint.

 

Then pour in the plaster of paris into the mold. When it is almost full you need to lift up the board slightly and let it drop onto the table. Repeat this for a while to make sure all the bubbles come to the top. If there is a leak then patch up your walls as best as you can. Wait for it to dry and you can peel back the walls carefully. then you can cut away the walls and fire the clay if you want.

I haven't done anything with my piece as my imprints were quite faint and so I decided to leave them as I didnt want to loose them if I added glaze on top.