These Haiku Fortune Cookies sound like a great idea to me. I will have to try this recipe.
I'm not sure where I will come up with the haiku to put in them, but the link above lists some great haiku books. I could also make my own or turn it into a fun family project.
Wing Nuts: Screwy Haiku by Paul B. Janeczko and J. Patrick Lewis, illustrated by Tricia Tusa, lives up to its name with haiku like this one:
On Ferris Wheel
I regret French fries, milk shake --
those below agree