One of my favourite party games is word-*dis*association, because it requires a large degree of abstract thought and consent from all participants that, for example, the words "hat" and "duck" are unrelated¶.
So in a similar vein, I offer you a sentence with (hopefully) no assonance or alliteration in it at all: this sentence needs more hard thinking so that future words become read as unfluently as possibility allows.
¶ - "Aha," I hear you cry, "but a duck could wear a hat, or a hat could be made of duck feathers"! Indeed, but have you ever seen a duck wearing a hat? Or a hat with a duck feather in it...? (the debate rages on)