Abstract: A sponson comprises a floatable tubular section (110) with longitudinal, attached guideways or channels (105, 115) that house drawstrings (106, 116). The sponson is secured to the gunwale (130) of a personal watercraft by positioning a first guideway or channel above the gunwale and a second guideway or channel below the gunwale then pulling the drawstrings tight and securing them with knots (107, 117) or other means. The sponson has been filled with air, a foam material, or a combination in order to provide flotation. It also acts as a bumper to prevent damage to the craft in case of a collision with another object. The sponson is positioned above the water line and so does not cause drag when the craft is in normal use. The design is usable without modification for a variety of craft. An alternative embodiment includes an extra guideway or channel (120) for attachment to a fixture (125) previously installed on a craft.

Abstract: A cushion for motor vehicle seating or furniture comprises a flexible outer membrane or cover and a multi-hardness foam member, comprising foam regions of different foam hardness. The foam regions are bonded together along common boundaries and are bonded to the membrane at any boundary therewith, such bonding ocurring during formulation of the foam member and employing the materials of which the foam member is made. The method generally comprises the steps of: (a) providing a flexible membrane having a cavity therein; (b) adding to the cavity in a predetermined sequence a plurality of formulations in liquid form which, when cured, provide a foam article having foam regions of different hardness; (c) and allowing the formulations to cure, bond together at any common boundary between formulations, and bond together at any common boundary between a formulation and the membrane.