This is just an idea at the moment, but I thought I'd ask if anyone else has been there and done that:
I would like to make an ultralight metal version of the camelbak better bottle:
http://www.camelbak.com/Sports-Recreation/Bottles/Better-Bottle-75L.aspx
And here's why: I use a homemade pack with pockets on the shoulder straps that can carry water bottles. I'm intrigued by the idea of having a bottle that can double as container to heat water in for cooking. I also like the idea of having hands-free hydration. Here's a pic of my pack to give an idea:
https://picasaweb.google.com/matthew.d.kirk/MST?fgl=true&pli=1&fgl=true#5613431120337475106
I'm thinking of using a screw-top aluminum energy drink or aluminum miller lite bottle for the body. I'd love to get my hands on one of those 7-11 aluminum straws (but there are no 7-11s close to where I live in NC), and are they even still on sale in the winter?
http://we-rate-stuff.com/2010/07/7-11-metal-slurpee-straw.html
I've got old platypus bite valves that may fit the top of the straw. What about securing the straw to the cap? Probably best not to make it air tight to enhance the ability to draw water out of the bottle when drinking? Anyway, I thought I'd put it out there…

