And these are fascinating (probably you're already aware) - the religions that sprouted all over the South Pacific following the interactions of primitive indigenous peoples with Allied Servicemen.
Links:
http://en.wikipedia.org/wiki/Cargo_cult
http://www.time.com/time/magazine/article/0,9171,892609,00.html
http://www.damninteresting.com/john-frum-and-the-cargo-cults/
http://www.bbc.co.uk/dna/h2g2/A2267426
Quoting Time Magazine: "Imitation radio antennas made of rope and bamboo were set up to receive news of the millennium, when black skins would turn white and all the harsh demands of life would miraculously disappear." & "All of them share the belief that black men will acquire the white man's magic to materialize goods from overseas without doing a lick of work.
John Frum: Probably a corruption or pidgin version of "Hi I'm John from /OHIO/NEBRASKA/IOWA/WISCONSIN" - reduced to John Frum.