These dishes are made using craft porcelain, a clay-like material that requires no baking. After rolling out the craft porcelain, a piece of lace is pressed gently on top to create the design. A sharp instrument is then used to remove the excess. Placing the clay in a rounded container allows the piece to dry in the shape of the bowl. The piece will be dry in about 24 hours.
Via pinterest
Do It And How 
Do you need to spray this with a finish? Can you use this for food? How durable is it?
Do you spray a type of glaze or finish on them when they are dry?