Collectable trophies

When you kill mobs you have a chance of them dropping a trophy, not a head but like a small scale model of them. You can also find some in chests in desert temples, mineshafts etc. Possibly if there’s to be a use other than just to collect them they can give potion effects when kept in the hotbar or if you collect a certain number of one you can combine them to be able to spawn one? Otherwise just a cool achievement when you get all of them or all of each mob type. Then alongside the trophies pedestals can be added to display them and other items.