Windscreens are always a little bit of a problem, especially if you're trying to make them lightweight. I've designed this windscreen system to use with my Pocket Rocket. It has an adjustable ring, and can accomodate a small or large diameter pot. The base mounts directly onto the stove. It holds itself in place with its own weight, and creates a microclimate of heat around the bottom of the pot, vastly increasing the efficiency of the stove. With this system I can boil 2 cups of water with around 6 grams of fuel. I chose to use titanium foil because of it's durability and strength to weight ratio. It's also easy to cut with sturdy scissors or a utility knife.