Have any of your kids reversed an "innie" belly button? Miles is constantly holding his belly button, moreso than even most other two-year-olds I've observed. He treats it like a blankie, holding it when upset or when going to sleep. In so doing, it's now almost entirely "outie."
I don't mean this in a worried way; he's still comfortable and I actually think it's a rather impressive accomplishment. But is he alone in this?