May I suggest to create a "mine field, you will die" banner in your property with stones big enough to be picked by the satellite photo in the next update? Or

May I suggest to create a "mine field, you will die" banner in your property with stones big enough to be picked by the satellite photo in the next update? Or you may prefer a tasteful "sea crocodile sanctuary" traffic signal (Extra points if you draw the crocodile eating a tourist holding a beer and wearing Tyrolean pants).