Decorate mega marshmallows to look like ghosts or ghouls.
Mega Marshmallows, melted white chocolate plus green food colouring for the ghouls, cake decorating icing (various colours & decorations (silver balls, laces, hundreds & thousands etc), lollipop sticks
For the Ghosts; Stick a lollipop stick in the marshmallow; dip into the melted chocolate and add eyes, mouth with the black icing and silver balls for eyes.
For the Ghouls; Stick a lollipop stick in the marshmallow; dip into the melted chocolate which has green food colouring added to it, decorate with icing, silver balls, laces etc to make a scary ghoul. Let set and eat.