One fan artist from the Pokemon community designs a custom Eeveelution of their own which, like Eevee itself, exclusively uses the Normal-type.

According to a design doc in the leaks, a flying-type Eevee evolution was planned for the ... so fans have been drawing mockups of possible Eevee evolutionary lines for decades, including flying ...

Eevee has been an anticipated feature for Community Day for ages now because it has five potential shiny evolutions right now, seven with Gen 4 arriving soon, which is a true rarity in Pokémon GO.