Creating the Plaster Moulds: Measure the plaster powder according to the instructions on the package. Mix the plaster powder with water in the mixing bowl. Stir the mixture until it reaches a smooth consistency. Pour the plaster mixture into the moulds. Tap the moulds gently to remove air bubbles. Let the plaster set and harden according to the recommended time. Painting the Plaster Shapes: Set up a painting station with paints and paintbrushes. Allow kids to paint the plaster shapes with their chosen colors. Encourage creativity and experimentation with different painting techniques.