We just make them too. Either wood and bend them and treat them with clear coat, steam bends them nice, or get a piece of PVC rain gutter and cut out the shape you want, Dip the tip in boiling water for a short time, and bend it around a pop can. Put a screw through the bottom into the mounting plate or engine mount sticking up from the ski, and drill a hole in it for the gear. Pretty simple and no cost.