It takes practically nothing to make this family of mischievous sprites.
Top each jug or bottle with a ball of crumpled aluminum foil.
Cut white gauze or cheesecloth into 18-inch squares (one square for each ghost). Dip the gauze squares into a bowl filled with laundry starch. Pull them out one at a time and squeeze out the excess moisture. Drape a square over each bottle.
To shape the ghosts' shoulders and arms, loosely pile crumpled aluminum foil near the bottle and drape the gauze over it. Flare out the lower edges of the gauze and let dry overnight. (To make a dog, simply drape a small square of gauze over shaped foil.)
Once they've dried, carefully lift the ghosts from their bottles. They should stand freely on a flat surface.