U.S. Amazon has it here:
http://www.amazon.com/Outdoor-Pocket-Mic...ro+Stove+EDCBox but the reviews are not so good, mostly because of it's really small size.

A larger one of the same type but different maker, also from 5 flats of steel, is available (but only one review): http://www.amazon.com/Outdoor-Pocket-Sto...ro+Stove+EDCBox, but it looks more practical.

Access to sheet metal, tools and time and you could work either one of these up fairly easily I think.
"Better is the enemy of good enough."