Kaomoji Nyanko Toko Toko Dance (顔文字ニャンコとことこダンス) is the name given to two plush musical cats offered by TAITO as an amusement prize. The company which created them is Amuse.
They apparently became available for a limited time at arcades on the 19th of June, 2013.
It resembles a plush cat with the face of a Kaomoji.
One version is white, with a happy expression, eyebrows, and a pink bow on its tail, while the other is a happy, black cat with a red bow on its tail and an open mouth.
The cats walk and shake their butts as they play a song called "Family Business" by The Supermen Lovers. I don't think Amuse had permission to use the song, given there are other unlicensed toys with this same song and mechanism.