A fascinator is a headpiece which is designed to be attached to the hair in lieu of a hat. Traditionally, fascinators are worn by women only, and they are typically paired with formal wear, although one could wear a fascinator on less formal occasions.ne of the advantages to a fascinator, as opposed to a hat, is that a fascinator can be cheaply, easily, and quickly created, although it is also possible to purchase a fascinator. Some crafters enjoy making custom fascinators to go with various outfits, and creating a fascinator can be a fun project.