Party on a Cake
- Episode aired Mar 1, 2020
- TV-Y
![Rainbow Ruby (2016)](https://m.media-amazon.com/images/M/MV5BOWI2MjVlZWMtNzllOC00MjIyLWE3ZjYtMjk1NjEyYTEzYmUwXkEyXkFqcGdeQXVyMTMxODk2OTU@._V1_QL75_UY281_CR6,0,190,281_.jpg)
When Baby Harmony finds her birthday party disappointing, Ruby decorates the birthday cake to form a miniature playground.When Baby Harmony finds her birthday party disappointing, Ruby decorates the birthday cake to form a miniature playground.When Baby Harmony finds her birthday party disappointing, Ruby decorates the birthday cake to form a miniature playground.