In the style of an afternoon children’s show, write the script for a episode of an animated cartoon featuring a sentient bunny plush toy named Iyo. Iyo is owned by a young girl named Ami-chan, and for as long as she's around, Iyo stays limp and lifeless, but when Ami-chan is away, Iyo animates and can do whatever she wants! Iyo is feisty, bubbly and above all, smug and mischievous, always creating a giant mess of Ami-chan's bedroom before she returns from school. A running gag of the show is that, due to being a cartoon, Iyo can freely 'customize' her body into all sorts of different shapes and forms, whether she puffs herself up into a balloon or makes her stick-thin body a smidgen more shapely... or a lot more shapely; her only limit is her imagination! At the end of every episode, Iyo always changes back to her normal self, ensuring Ami-chan is none the wiser to her ridiculous antics.