Perhaps some titanium foil could be fashioned into an Orikaso Multi-functional Dish flat folding type metal cup for boiling and easier storage.

http://www.actionoutdoors.co.uk/orikaso_dish_use.htm

http://www.titaniumgoat.com/windscreens.html

I should have enough left to try out for such a project after making all the windscreens I could ever wish for when the titanium foil arrives from the USA.