Abstract: Disposable bowl is adapted to fit into a toilet bowl and to be supported thereby. It contains a blender blade assembly in the base thereof and a lid or cover is provided which can be secured to the container after same has been used. A connection extends into the bowl adjacent the upper side for injecting water or other fluid to wash down the sides of the bowl and also to dilute the stool specimen which may then be blended by engaging the device upon a conventional blender base. A further tube extends through the wall of the bowl for extraction of the necessary sample after blending whereupon the entire assembly may be disposed of without opening same.