Drawing/art
Going off model/changing designs, I just ask you not to change the skin tones a whole ton
Interacting with other characters outside the world/canon
Genderbending
Gore
AUs
Cosplay
Headcanons
Kinning
Theories, predictions. Anything in this realm
Fanfiction (like writing about them in any way, I don't mean specifically the default/cliché definition of fanfiction. You can also write the cliché/default definition of fanfiction)
More of a world thing, but feel free to make self-insert/fan characters for any of the worlds/stories I make
Claiming my characters as your own. I feel this is obvious, but I'm still listing it
NSFW/Rule 34. Slightly suggestive stuff is fine, just don't get too extreme
Selling your own merch of my characters. If you make something for just yourself or a friend, then that's fine, just don't make anything you plan on actually selling without talking to me about that
Main Protagonists
Main Antagonists
Main Protagonists
Main Antagonists