Do those happen on FIMFic? You know, people sign up, list some requests they wanna see, what they're willing to write, and then people get matched up?
I'm so bad at making myself write, unless I'm doing it for someone, and I want to do this so bad. I've done them for other fandoms, but have no idea where to look in this one.
Well you could hire an artist to help you with that, or take something from the non-copyrighted section of the internet.