You will need:
- Three tennis balls
- Three bowls of coloured paint (make sure the paint is well diluted with water)
- Cardboard
- Newspaper for the table
- Apron
How?
Dip half the tennis ball in bowl of paint.
Holding the ball securely in your hand, slam the ball as hard as you can onto cardboard.
It should leave a large splattered effect.
Repeat the process using a new ball with a different colour.
