Open a dictionary or thesaurus at random. Pick 3 or 4 words and write about them. Or use them in several different sentences. Or use them in a paragraph.
Open a novel, the Bible, or poetry book at random. Close your eyes and point at the page. Use what your finger lands on as a starting point; finish the sentence and keep on writing.
From the Miraculous Pitcher
A comfortable bowl of bread and milk wouldn't be so comfortable to sleep in unless I were rather small. I suppose if I was small enough to fit in a bowl of bread and milk the bread might actually be rather soft and might have a nice smell too. But the problem would be the milk. I should say I might quite drown in the milk if I were small enough to fit in the bowl.