if you are closing your account.
I made a character for a friend, and they closed their account recently due to personal reasons. They didn't transfer the character back to me beforehand, so now the character and their art is lost unless staff can do something.
My idea is for the ability to send characters back to their creators. This might not even need to be programmed in, since closing accounts is manual, staff could just remind people to transfer any characters they don't want back to their creators, before confirming closing their accounts.
If account closing by yourself is programmed in, this could be either a screen that reminds you to go back and transfer any characters you want to save, or a menu to select which adopted characters to send back to their creators.
in fairness, closing a toyhouse account doesn't mean you're giving up your ocs, and it doesn't necessarily mean you'd be sending them back to the original creators (i know i'd send my ocs to my partner, not the creators).
but i don't think it'd be bad to have a general reminder to "clean up" your ocs by sending off any if you wish when you select "account closure" in the ticket (since text can pop up in the editor!).