Souvenir Clothing

I think it would be an interesting addition to the game if certain entities (such as cleric villagers, evokers, pillagers etc.) gave the player the outfit that the entity is wearing upon achieving a certain goal. For example, once you completely maxed a cleric villager, you would receive the purple cloak that clerics wear, as a souvenir. Once you completed raiding a woodland mansion, you would receive the coat of the evoker. Once you successfully won a raid, you would receive the pillager outfit.

I think this could add more motivation to certain aspects of the game, like those mentioned above, as well as be a way to showcase accomplishments to other players in realms, multiplayer etc.