Build your very own submarine starting from $50,000

Note that this sub is open to the water in the bottom which means that the air pressure is the same as the water pressure. That means you have to take all the same precautions as divers in terms of depths, ascent rates and making sure you don't get the bends.

One of Copenhagen Suborbitals (<a href="http://en.wikipedia.org/wiki/Copenhagen_Suborbitals" rel="nofollow">http://en.wikipedia.org/wiki/Copenhagen_Suborbitals</a>) co-founders first build this submarine.<p><a href="http://en.wikipedia.org/wiki/UC3_Nautilus" rel="nofollow">http://en.wikipedia.org/wiki/UC3_Nautilus</a><p>Pretty cool guys too.

Great, this is just what I needed to transport a bunch of coke from my hookups south of the border. (google: cocaine submarine)

I prefer these: <a href="http://tritonsubs.com" rel="nofollow">http://tritonsubs.com</a>

I'd have thought that the underwater "plane" designs would be cheaper, more fun, and safer than this.