I just started a new toy project for extracting Haikus from straight prose. It is currently in very rough shape and not very capable, but it is still fun to play with.
Choice examples from Emily Carr's "Klee Wyck" include:
Beaches Trees Held Back By Rocky Cliffs Pointed Fir Trees Climbing In Dark Tipped Forward In Sleep And Rolled Among The Bundles The Old Man Shipping The Sun And The Moon Crossed Ways Before Day Ended By And By The Bulls
Another example from Sun Tzu's "The Art of War":
Retained In Command The General That Hearkens Not To My Counsel
Watch the project on GitHub to see it develop.