I have finally got around to doing my tank cam mount. Mount made from, non descript audio speaker, bolt and nuts of same thread size and pitch as tripod mount, flat washer, very nice piece of pink fluffy rag. Speaker magnet was drilled and tapped and bolt and nuts attached. S5500 FinePix mounted on bolt as if on tripod. Mods to come. Nylon or rubber block between magnet and camera base to provide a more stable surface. Raise entire mount 15/20mm for better forward view. Paint the mount black. If you watch the video don't worry about the clunky gear change and the worst u-turn I've ever done. I was watching the camera more than I was watching what I was doing.