Same place as in Sun and Moon. Go to the GAME FREAK office and talk to the game director. After he's given you the appropriate stamps, he'll give you the Shiny Charm. And something extra to go with it, too...It is done. WIth the evolving of Golett into Golurk have I completed the Alola Pokédex! I have every Pokémon sorted on Pokédex number in PC boxes, including some of the Ultra Beasts and the island guardians I have imported from the Pokémon Bank (originally caught in Pokémon Sun and Moon). Now where's my shiny charm?