Step1
Cut a piece of cardboard to the size of your face or a little bigger. Leave room for any strange or creepy facial features you might want to include. For example, if you want an elongated face with a spooky, howling mouth, make the mask a little longer.
Step2
Cut holes for your eyes and, optionally, nose. The eye holes should be big enough to comfortably see through, and the nose hole should be adequate to help the mask sit closer to your face.
Step3
Make facial features out of cardboard. Rough, bulging eyeballs, bulbous chins, and gaping mouths are all good features for a ghost mask that can be easily approximated with cardboard. If you have cut out a hole for your nose, you can use a bent piece of cardboard to make a three dimensional nose that will fit over it well.
Step4
Attach the cardboard features to the mask. Either masking tape or duct tape will work. Don't worry about how it looks, since you will be building over it with paper mache.
Step5
Prepare paper mache. Paper mache can be made by either combining equal parts flour and water, or by mixing white glue with water. In the case of the latter recipe, the proportions will vary depending on the glue. You want the mixture to be slimy but fairly thin.
Step6
Tear up newspaper into strips one to two inches in width.
Step7
Dip the strips one at a time in the paper mache and paste them on the mask. Use them to round and fill out the facial features.
Step8
Use rolled up, wet strips of newspaper to build up three dimensional features more quickly. Put the wads of paper on the surface, then cover them over with more strips of paper.
Step9
Let the mask dry for 24 hours in a warm, dry place. If you want to speed up the process, you can put it in the oven on a low setting or use hair dryers to dry it out.
Step10
Paint the mask. Usually a grayish white is a good base for a ghost mask.
Step11
Add shading. Small patches of mottled gray and brown will give your mask a dingy, deathly appearance. Traces of blood, bright green eyes, black lips, and other details can also enhance the overall appearance of your ghost mask.
Step12
Bend several coat hangers to create the back of your mask. They should attach at either side and be the right size to hold it securely to your head.
Step13
Tape pieces of foam to the sides of the coat hangers to fit it securely to your head. This will give the mask a more snug fit, and stop the metal from digging in to your head. Either duct tape or masking tape should work.
Step14
Cut up a wig and tape it to the back of the mask. I usually like to use long, dark, stringy hair, but whatever looks creepy, strange, and disheveled will work.
Step15
Reinforce the underside of the wig with duct tape. It needs to be securely taped to the back of the ghost mask so that it does not fall off.