Yes, you can find shiny Pumpkaboo in Pokémon Go
Source:https://www.polygon.com/pokemon-go-guide/23889444/can-pumpkaboo-be-shiny-gourgeistYes, you can find shiny Pumpkaboo in Pokémon Go
Source:https://www.polygon.com/pokemon-go-guide/23889444/can-pumpkaboo-be-shiny-gourgeist