Yeah, I forgot about that one. There's the oval-shaped Change Pierces and the two Ciao and Sanrio heart-shaped Pierces. Either it's gonna adopt either of those shapes or have a Mickey-shaped as it should since it makes the most sense.
Its probably going to end up as the heart ones since it is a collaboration rather than a regular Tamagotchi change pierce.
The thought of the iconic Mickey Mouse head is interesting.