Who doesn't like the Ramones? Their oft-overlooked lyrics (written largely by Dee Dee, strangely) lend themselves really well to cut-and-paste stuff like this. Haiku don't have to be 5-7-5 (I think?), so the generator's normal mode just grabs three random lines from the first three Ramones albums. For purists, though, its syllable-counting mode creates a haiku by starting with a random word from those albums and counting forward until it reaches the correct number of syllables. (If it goes over, it just starts again.)
Click that link below for an example.