I got a question about the stove in this video

a bushcraft breakfast and a pilfering pooch - YouTube

http://www.youtube.com/watch?v=acca8vSJW5U

He started the trangia stove at 3:30

My question is about the can that surrounds the trangia and the other can in which he is cooking:

Are they a commerical cooking set, or a stove that has a name, or do you think they are hmemade/assembled. If they are homemade, how do you get so many holes in a can that look neat and without twisting the can ?

Unfortunately , I don't have an account in U-tube
so I cannot ask the guy about his stove

Actually I have made my own esbit-type stove. But in my case, the pot sits ON TOP of the stove, where I may need a speparate windshield. The neat thing about his stove is that the outer can makes a built-in windshield that conserves heat and fuel. In a way , it is like Hiking Jim's Bobcat system