592237 A body fitment for an ostomy appliance comprises an adhesive wafer (10) including a moldable region (10a) shapable by the user. A removable release liner (20) covering an external adhesive surface of the wafer is configured to permit molding of the moldable region by manually manipulating the adhesive through the release liner, and/or with removable segments. In an alternative form, an interior release liner is removable through the entrance aperture of the wafer, by pulling on a grip portion that protrudes through the entrance aperture. In an alternative form, an ostomy pouch includes a finger pocket in a front pouch wall, for permitting insertion of a finger tip for molding the moldable region of an adhesive wafer that is secured around a stomal aperture in a rear pouch wall. At least a portion (20a) of the release liner covering the moldable region of the adhesive wafer is made of stretchable material that permits deformation of the release liner to accommodate manipulation of the adhesive through the release liner.