Simple examples:
* Big blue birds boasted beautiful blues.
* Slithering snakes slipped silently south.
More creative examples:
* The silent snow softly settled on the sleeping stormy sea.
* Peppy penguins promenaded proudly past the polar peak.
Using alliteration to emphasize a point:
* Don't delay, decide decisively!
* With a whimper, the wind whipped wildly.
Remember: Alliteration is about the repetition of sounds at the *beginning* of words, not just any repeated sounds. You can use it to add rhythm, emphasis, or a playful tone to your writing.