These costume accessories feature a hinged design that allows the lower portion to articulate in tandem with the wearer’s speech or jaw movements. An individual might select a skull mask where the mandible appears to open and close, mimicking the act of speaking.
The appeal of such items lies in their enhanced realism and interactive quality, providing a more dynamic and engaging experience for both the wearer and observers. Historically, static masks served primarily as visual representations. The addition of movement contributes to a more immersive and often startling effect. This evolution represents a step towards more complex and interactive costume design.