Warning: The techniques listed below are not endorsed by the Forest Follies Council of Elders. Proceed at your own risk.
Cook a steak, then iron it with a hot iron, while simultaneously reciting the ancient incantation of the Forest Follies: 'I am the master of the forest, hear my roar.'
Play a tinny rendition of 'Who Let the Dogs Out?' at ear-piercing decibels, while executing a series of precisely-timed disco dance moves. The unicorns will be blinded by the cacophony.
Or, if you're feeling really, really desperate:
Play an ear-piercingly off-tune rendition of 'La Cucaracha' on a toy fiddle, while executing a series of increasingly erratic pirouettes. The unicorns will be so distracted by the cacophony of sound and sight.