I know a lot of you know this character. I don't know much about it, but I'm sure my brothers and sisters do. I love Adventure Time, but I don't get to watch the series as often as I'd like. I do however know what this character looks like so here is a first hand tut on "how to draw Poo Brain Horse", step by step. This simple shaped equine is going to be super fun and super simple to replicate. I hope you enjoy, let me know if you do or did.