This is a big technicality, but the tanuki-ish powerup gained in the Super Mario Bros. series is referred to as a Tanooki[note the oo instead of u]. However, there's an artist with the same name tagged, so the specific species is needing seperation, possibly tanooki_(species).

The species is under tanuki, which (as far as I'm aware) is just a different spelling.

The artist is under tanooki, but it's a pretty small tag, so keeping it clean shouldn't be a problem.

The Super Mario Bros. one actually has a tag already, tanuki_costume.