Continue on for:
How to make a Dive Helmet from a 5 gallon bucket
If you are serious about diving visit: PADI - The Way the World Learns to Dive.
Disclaimer: I hereby express every conceivable disclaimer.
See also: http://www.darwinawards.com/
Want to learn more? Visit the Diving Heritage -
Shallow water Diving Helmets Pages
If this intrests you be sure to see:
ModernMechanix "How to Drown Yourself DIY Style"
For a look at some of the hazards of shallow water diving see: