KAWS is collaborating with the Japanese television series Hirake! Ponkikki on his 2021 winter vinyl figures. The name of the KACHAMUKKU figure came together by combining the names of Hirake! Ponkikki characters Gachapin and Mukku. The figure split down the middle with Gachapin on the left side and Mukku on the right while KAWS put his signature motif bone shaped ears and X marked eyes.