We had a Girl Scout camp out this last weekend. Our troop made these ghost swaps to give to the other girls there.
They were super easy to make. We used 1/2 of a safety tip cotton swab per a ghost (found at the dollar store). We covered that with a 3 x 3 inch piece of white fabric and tied a piece of yarn around the top to form the head. The girls had fun using permanent markers to customize their ghosts' faces.