Instructables user Danger Is My Middle Name gives us this mystical recipe for Unicorn Barf. Oh yes, Unicorn Barf — the epitome danger. The steps seem simple enough and the supplies should be easy to come by: marshmallows, cereal marshmallows, butter, plus a sharp knife, sauce pan, spatula, and a baking tray. Hoo hoo hoo! A sharp knife? No can do, compadre! I’m gonna need some adult supervision for all of that. I know what you’re thinking and yes: I am an adult. LEGALLY. But mentally, I’m around like 9, 10? Butts are funny!