You fags aren't creative enough, it's always "say, you know Mickey Mouse and Pooh are PD?"
Dennis the Menace (US), Marmaduke, Dick Tracy and a lot of the Harvey characters are PD too but I haven't seen anyone do anything with them. Why not just for shits and giggles make something with one of those "blank slate" characters nobody's heard of?
https://commons.wikimedia.org/wiki/Commons:Character_copyrights#Animation_Origin