Excellent link and resource, Waterman
Here's what I have found at the moment:
where I found it
http://www.defensereview.com/modules...rticle&sid=725
and the link to their site.........
http://www.intermat.gr/
and I'm still looking for more natural methods, btw the "cover yourself with mud" method doesnt work, it will for a few seconds, minutes, then your body heat will just heat up the mud.
Regards and Blessings,
Soul Sequence