Decorated Gas Tanks of Japan Pink Tentacle has many pictures of some colorfully decorated gas tanks that can be found in Japan. Watermelon paint schemes are apparently common. You know, the shape would lend itself very well to a Pokémon ball.Link | Photo: LiveDoor Comments (2) Too bad the Kirby one is only conceptual :) Abusive comment hidden. (Show it anyway.) Just an FYI: the term is Pokéball, not Pokémon ball. Abusive comment hidden. (Show it anyway.) Login to comment. Enable JavaScript and Click here to access all of this post's 2 comments