(If you don't get a sound, trying saying a word like "who" in the kazoo.)
The kazoo is in the family of musical instruments called, “mirlitons”.
These instruments make their sound by sympathetic vibration with the human voice.
The sound of your humming voice causes the wax paper resonator
to vibrate in the kazoo, and the shape of the kazoo helps amplifiy and project the sound.
ADVANCED KAZOOINGTRY A MUSIC SCALE - “DO-RE--MI-FA-SO-LA-TI-DO”
PLAY “MARY HAD A LITTLE LAMB”
MAKE THE SOUND OF A FAST SPORTS CAR
MAKE THE SOUND A OF POLICE SIREN
MAKE A DINOSAUR SOUND
MAKE A MOSQUITO SOUND
PLAY BEETHOVEN’S FIFTH SYMPHONY
CAUTION: Continued Kazoo Playing Can Be Very Annoying to Spouses, Parents, and Co-Workers.