Theory:

Alliteration is the occurrence of the same sound at the starting of two or more words in a single line, in a poem.
  1. The slender smiling girl.
  2. The song of sweet birds.
  3. Black bug bit a bear.
  4. Practise the piano.
  5. Feel the phone on your face.
  6. Dandelion whose fuzzy head.
What are the uses of alliteration?
 
1. It creates a rhythm, similar to rhyming words.
2. It emphasizes the importance of phrases.
3. Mostly used in tongue-twisters.
Alliteration used in the poem "Macavity: The Mystery Cat":
  1. Macavity’s a Mystery Cat,
  2. For he’s the master criminal who can defy the Law
  3. For when they reach the scene of crime — Macavity’s not there!
  4. He’s broken every human law, he breaks the law of gravity.
  5. His head is highly domed
  6. He sways his head
  7. He sways his head from side to side, with movements like a snake
  8. And when you think he’s half asleep, he’s always wide awake.
  9. And when you think he’s half asleep, he’s always wide awake.
  10. And when you think he’s half asleep, he’s always wide awake.
  11. For he’s a fiend in feline shape.
  12. You may meet him in a by-street
  13. You may see him in the square