Using words starting with "O":
* Ocean's Overwhelming Overflow
* Olive Oil's Oily Odor
* Orange Orchards Overflowing
* Opulent Opals On Offer
Using words with "O" sounds:
* Whispering Wind's Woeful Wail
* Crowing Rooster's Raucous Roar
* Rolling Thunder's Roaring Rhythm
* Flowing River's Gentle Gurgling
Let me know if you want more alliteration examples! 😊