You will need:
White construction paper
Scissors
Glue, tape, or staples
Crayons or markers
String or yarn

Instructions:

Draw a ghost on the white paper put a stem at the top which will be used to fold over to hang him..  Cut him out.  Make several more just like him.

Use the black marker or crayon and make eyes, a nose, and a mouth.

Fold all the ghost's stems over behind them and attach the stem to a string to hang up your ghost.  Hang up each ghost on a long string so you have a string of ghosts or you can hang them individually if you wish.