Accessories sized for 11-inch fashion dolls will also work for 12-inch action figures. Redditor adultish- scored a used beachfront mansion made for Barbie dolls for $20 and converted it into a superhero headquarters for her son! While the superheroes don't need a kitchen or bathroom (at least not for adventures), they do need a roomy garage. And sure, that couch is too small for Hulk, but life-size couches are too small for life-size Hulk as well. See the before and after images here.