Amazon.com: Disguise Pokemon Costume Bulbasaur for Kids, Children's Classic Character Outfit, Child Size Small (4-6) Green (105459L) : Clothing, Shoes & Jewelry
Simon's Bulbasaur Halloween Costume - YouTube
Pokémon Go event Pokémon list: All costume Pokémon, including party hat Pokémon, flower crown Pokémon and every Pikachu costume explained | Eurogamer.net