fright wig 
noun
A wig with the hair arranged standing up or sticking out, as worn by a clown or similar performer.Get yourself a fright wig and a funny nose, Tiny....
- My wife was positively gruesome with a witch outfit, long knobby nose, cackling laugh, a fright wig and blackened teeth.
- The sight of him dangling from the machinery with his fright wig and his oversized shoes is at once savagely comic and deeply shocking.