A tasseled topper is a type of headwear that is typically made of fabric and has tassels hanging from it. The two most common types of tasseled toppers are the TAM and the FEZ. A TAM is a round, brimless hat with a flat top and a tassel or pompom attached to the crown. A FEZ is a brimless, cylindrical hat with a flat top and a tassel or pompom attached to the crown. Both the TAM and the FEZ are popular choices for formal occasions.