An attachment for a hair dryer that is movable between a first position and a second position in order to alter one or more characteristics of the airflow therethrough. In one embodiment, an attachment having multiple facets and types of projections with varying stiffness are provided on an outer housing that can be rotated relative to a base by the user. In a second embodiment, an attachment having a concave surface with prongs extending therethrough that can be moved such that the exposed portion of the prongs are lengthened or shortened, as desired.