The summer is coming, Alex Dodson will sometimes build me such a part.
Alex Dodson is a Brit who makes Amazing stoves and fire pits out of spent LP gas bottles. Here is his Witch King of Angmar burner. When not upcycling gas bottles into fiery, characterful creations, Alex teaches technology in a secondary school and tries to inspire the next generation of makers. See hisBurned by Design facebook page for his equally awesome Darth Father and Iron Man stoves.
(via Burned by Design)