The creaser accessory device includes first and second plates pivotally connected to a lever arm that can be operated by a user to pivot the plates away from each other to receive a portion of a garment, and toward each other to press the portion of the garment such as to form a crease in the garment. The typically have apertures therethrough to allow steam from a hand held steam generating device removably coupled to the creaser accessory device to pass through the apertures to heat the portion of the garment when received in the creaser accessory device.