Instead of Cameos you could get people to design trainers. If you like them they get cast in the Battle Tournament.
That way you avoid the trouble with Cameos but still don't have to make several sets of Trainer Sprites.
I think it's a horrible idea. They interrupt with the storyline sometimes. Even though PCC does great with it it doesn't mean you should. D: So, you should just come up with some sprites.
Instead of Cameos you could get people to design trainers. If you like them they get cast in the Battle Tournament.
That way you avoid the trouble with Cameos but still don't have to make several sets of Trainer Sprites.
So, I must put up an announcement for a designing contest, where people can send me their work and then me and a few other judges (or maybe the audience) can judge them, and the best sprites get chosen?