• a leaf with an interesting pattern
• plaster of paris
• cottage cheese container lid
• vaseline
• water
• a jar
• an old spoon

Procedure:

• Lay the leaf on the dish with the underside (the veined side) facing upwards.
• Rub a little vaseline on the leaf.
• Put a little water in the jar.
• Carefully spoon plaster of paris into the jar. Keep adding plaster of paris into the jar little by little until the mixture is like toothpaste.
• Carefully spread the plaster over the leaf so that it is evenly covered.
• Then fill the dish with  the rest of the plaster of paris. You need to work as quickly as you can.
• Leave the plaster to dry. This will take about half an hour.
• When the plaster has hardened, you can lift it out of the dish.
• Carefully peel off the leaf. There in the plaster is a cast of your leaf.