The Shazalakazoo was a magical musical instrument that Gargamel in the guise of Aurora the good fairy gave to Harmony in "Smurphony In 'C'". It resembled a horn with what appeared to be a squeezable bulb in its middle. It caused whoever listened to its tune played by its player to fall into a deep death-like sleep that they cannot be awakened from. Fortunately, the destruction of the Shazalakazoo was what cured the Smurfs of their deathlike sleep, as Harmony awakened them all to a song from his horn.