Thin ally or steel

[Jared]

There is this place found recently too

http://www.hollinbrow.co.uk/metals-for-crafts.html

 

[Gwhtbushcraft]

they are across the pond but this looks good:
http://www.titaniumgoat.com/windscreens.html
George

 

[EdS]

I can send you some pieces of the steel form 20l cooking oil drums ifthat is any good

 

[Lithril]

Cheers for the offers, as soon as I get a few minutes free I'll get back to you, must admit I'm REALLY curious about whether that titanium foil would be strong enough...