Pykrete, you gotta try this.

[chopshop guy]

http://en.wikipedia.org/wiki/Pykrete

I tryed this out last night and........wow. You've gotta try this and post what happened.

Its water mixed with sawdust and the frozen and it is harder than concrete.

[Carty]

I dont understand... they said that they wanted to make aircraft carriers out of the stuff... that doesnt really make sense as soon as you set sail your aircraft carrier would melt... if not because of temperature then it would due to salt content in the water

[hawk_196]

it doesnt melt as fast cause of its low thermal conductivity

(read it on the site)

[Carty]

but it still melts... which renders it useless as a frame for any kind of war vehicle