Crystal Ball in the Nether

It would be fantastic to have a crystal ball that one can look into and see where the closes Ghast is. It could be made of 8 Nether crystals round an amethyst shard. The amethyst would point to the Ghast like a compass does to spawn. This is a good idea because many people avoid the nether and so much of the game is not seen. Not wanting to go to the nether also makes people shy away from attempting the End.

the ball would be easy to program into the game and it would be used often by the players once crafted. People would also search for amethyst, aswell as loose the item often because of their new found bravery in the Nether. The player may then want to grow more shards. But if there is no Ghast in the Nether, the amethyst would not be visible. So if the crystal ball is not in the nether or it is closer to another crystal ball than a Ghast, it would simply look like a beautiful 'forget me not' flower set in a glass ball. This is because the forget-me-not flower (Myosotis)  looks like the amethyst could be pointing in any direction and it is a romantic knight in armour symbol.