You can. You are, technically, liable for likeness infringement at that time, if not copyright infringement if your image is sufficiently like a specific alrea

You can. You are, technically, liable for likeness infringement at that time, if not copyright infringement if your image is sufficiently like a specific already-created image of Mr. Mouse. Disney will not, generally, seek your chat out and sue you. They don't even have a channel to know it's there. ... but they can't really ignore something like Meta facilitating all their users with a giant copyright-and-likeness-trademark-infringing-machine. The "use it or lose it" nature of trademark protection alone basically compels them to at least send a C&D.