I remember seeing one animated episode in color of a show in my life when i was a teenager and within the title of the episode, the name “Winnie” or “Whinnie” was included. It focused on mice mostly. One thing I remember from it were 2 mice talking to a mare named Winnie/Whinnie at the stables only for the latter to finish the conversation by snorting in frustration/anger, thus, causing the mice to yell while falling from the ledge of the stall door.