Come up with the basis of a scene where the following will make perfect sense. Try to come up with several scenes for each and then use your favorite as a writing prompt.
"Why are those flowers acting like turnips."
"I *thought* it was a *potato*."
"Is that a robot head?"
"Why does the sky turn into a potato chip sometimes?"
"I found my friends in my head ..."
"I found God in a paint bucket."