Affordable Submersible Products: Plans for an underwater video camera housing, lights, and a waterproof keychain laser pointer by Gary Dagastine.Elfmun Underwater Products: Offers plans, parts, and kits to build underwater canister dive lights and video housings. Includes ordering information, price lists, and contact details.Lee Engineering: Plans for the 'Picture Toob' underwater camcorder housing developed by an engineer who enjoys water activities.Lunkercam: Plan to build underwater video camera.Midwest Engineering and Design: Sell plans for such items as underwater camcorder housings, 1 and 2 person submarines, hydrophones, ultralight aircraft, scuba tow scooters, and pulse induction metal detector.Scuba - do it yourself: Reinhard Kopka's site dedicated to homemade diving equipment and accessories. Plans range from lights and dive computer interfaces to diver propulsion vehicles and rebreathers.Scuba Tow: Build it yourself diver propulsion vehicles (DPV) plans for the scuba tow and a one man submarine.