Yes, we absolutely saw this very early with DD. She was obsessed with countries and states for a while, and was always seeing state and country shapes everywhere. As I recall, one of our oddly shaped wooden spatula heads looks like Egypt, and some other country looks like Dora's hair, and Uruguay (Paraguay?) looks like a Christmas tree. Her toast was always being bitten into state shapes. Sticks, shadows, and playground equipment were often numbers and letters. This all freaked me out a bit at first. She was under two.
DS did the same thing, but not as much. Or maybe we were just used to it. I don't remember him ever doing it with geography; he hasn't been as precocious with that.
