The Aroma (a mob that attracts other mobs)

The Aroma mob would be a small red colored 'ball' like creature that would be able to lure over hostile or passive mobs. How this would work is you'd give it (for example) rotten flesh, then it would attract over zombies and zombie like animals (think drowned, zombie horses, zombie villagers, or zombified piglins). It could be used in farms or for keeping your precious villagers safe from zombie attacks. Similarly, if you give it some wheat, or a carrot, or a dandelion, it would attract over a respective mob to it with the 'smell' of the item. It would also be useful in the Deep Dark. If you give it an armor piece you've had on for a set period of time, it would attract the Warden over to it (as long as you're not too close yourself).