Headpiece n. : Head.

Headpiece n. : A cap of defense; especially, an open one, as distinguished from the closed helmet of the Middle Ages.

Headpiece n. : Understanding; mental faculty.

Headpiece n. : An engraved ornament at the head of a chapter, or of a page.

Example:
Any ideas on how I can make a cool Headpiece for a Medusa halloween costume?

Taxonomy
Headpiece, tiaras, bridal veils, Joyce Jackson, bridal headpieces, Carla, Italy.

Defination from the web:
Headpiece.com provides customized bridal headpieces, bridal veils, and tiaras throughout the world. Headpiece.com also offers the designs of Joyce Jackson and Carla of Italy.