Try diffuse lighting - the classic option is a light pointing at a white shower curtain. That should cut down on the specular reflections. Alternately, get you

Try diffuse lighting - the classic option is a light pointing at a white shower curtain. That should cut down on the specular reflections. Alternately, get yourself a movable light, a live view through the camera, and move the light around until you find a position that gives you a good image.