How to Make Your Own Mask
Look through some magazines for a creepy interview picture. The picture needn't be life size. (A smaller Lincoln face was tested prior to Gore with an equally-creepy success.) These can be acquired from most "men's interests" magazines like this copy of FHM.
Find yourself some pipe cleaners for the appropriate shape. Then you'll need some tape. Like my handy medical... er.. Duct tape. A knife can come in handy for poking out eye-holes and cutting the tape. Last, you'll need a rubber band.
What to do:
Tape the pipe cleaners to the back of your mask with a little bit of slack. That way they bend without too much tension on the mask.
One pipe cleaner at the eyebrow level and another near the mouth would probably work well.
Cut the rubber band so that it makes one strand. Attach the rubber band to the pipe cleaners with simple knots.
Poke some eye holes and mask up!