Ask the children to cut the individual cups from an egg carton.
Ask them to inflate a balloon so that it is rather round in shape (to make the body of the pig).
Ask them to coat the balloon with strips of newspaper using the paper mache glue.
Ask them to use the pieces of egg carton to make the pig’s ears, legs and nose and glue them on the balloon and then cover them with strips of newsprint always using the paper mache glue.
Ask them to let it dry.
Ask them to paint it pink (or any other colour).
Ask them to draw the mouth, nose and ears on the black foam cardboard.
Ask them to cut them up and glue them on the pig.
Ask them to glue the googly eyes.
Ask them to cut a hole under the pig.
Ask them to paint an egg carton cup the same colour as the pig to make the cork of the piggy bank and insert it into the hole.