Create a list of word pairs and phrases that are built around alliteration or assonance. Remember, alliteration is when words in close proximity start with (or contain) the same consonant sound (as in pretty picture). Assonance is when words in close proximity echo vowel sounds (bent pen). Try to come up with at least ten of each. The more, the better.
Bonus exercise: Use the words from your lists to write a poem.