Plaster was moulded or shaped to make the designs for the ceiling.

• Plaster was dug out of the ground. The best plaster comes from near Paris - it is called plaster of Paris.
  
  
• The white powder was mixed with horse hair and water. The horse hair made it strong.
  
  
• It was poured into wooden or metal moulds or shapes.
  
  
• When the plaster had gone hard it was turned out.
  
  
• The patterns were stuck to the ceiling with more wet plaster.