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.
- http://www.scuba-lights.com/

Lunkercam
- Plan to build underwater video camera.
- http://www.mninter.net/~boardman/

Lee Engineering
- Plans for the 'Picture Toob' underwater camcorder housing developed by an engineer who enjoys water activities.
- http://pw2.netcom.com/~awing/video.html

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.
- http://insel.heim.at/malediven/350052/english.htm

Scuba Tow
- Build it yourself diver propulsion vehicles (DPV) plans for the scuba tow and a one man submarine.
- http://www.scubatow.com