This was the sole thing I enjoyed about WoW's garrison idea... (I know bleh I mentioned wow). But you saw your little minions running around or mounts if you had the one building. Oh or another example is ESO. Their newly released housing allows you to place acquired mounts and minions around your house both inside and out (mounts outside only but still). I would love this feature even if it's just minions and probably have a limit as to how many you can place.