Several days ago, I woke up and I wonder all of a sudden: 'I wonder if there's Deaf Poetry'. I got out of bed, and the first thing I did was look it up. And it exists!
It's actually quite interesting, but maybe not as linguistically relevant. Still I'd like to talk about it.
The experessions of deaf poetry can be far more complex than spoken language, for example they have such a thing as rhyme. Certain signs can be very similar in gesture, and thus they 'rhyme'. But there's more complex forms of rhyme in sign language. One could only use signs that have one certain direction for example. Or start with gestures close to the body, and end with gestures far from the body. All of this can add a lot of extra symbolism to the poem.
I'm starting to think, that if you're into poetry, you might even be better off speaking American Sign Language, than any human language.