Backcountry Boiler
There are plenty of different ways to cook your food when you're out in the wild, but if all you want/need is hot water, the Backcountry Boiler ($100) is a perfect tool for the job. Based on the chimney kettles made popular by Irish fisherman and WWII soldiers, it's a lightweight tool that will run on virtually anything that's flammable, boiling up to 16 ounces of water in roughly 5 minutes and warming up to 20 even quicker than that, serving as a canteen when not in use. Perfect for campers, hikers, or incredibly lazy preppers.