Moonmelon (scientifically knows as asidus). This fruit grows in some parts of Japan and is known for its vibrant blue colour. This fruit's party trick is that it can switch flavours after you eat it. Everything sour will taste sweet, everything salty will taste bitter, and it gives water a strong orange-like taste! Bucket list fruit!
WHAT?? The door to an underground storm shelter/panic room/secret hid out in the kitchen island! Best secret passage ever!! Definitely a dream home feature! (would also be good if someone broke into your house and you had to hide somewhere)