Make an existing item a bucket

[ShipHeatRook]

Hello everyone!
So, I've been experimenting with different things to implement in a mod, more as a way to get some practice myself. I want to make a mod that makes Vanilla milk a fluid and everything has been going smooth so far, except for one thing that's my question of the day.

How do I make an existent item in Minecraft act as a BucketItem?

Because I can't obviously use the milk bucket as it is, since I need to specify a bucket for my new fluid, nor I can write code like this

Spoiler

public static final RegistryObject<Item> MILK_BUCKET = ITEMS.register("milk_bucket", () -> new BucketItem(() -> ModFluids.MILK_STILL.get(), new Item.Properties().maxStackSize(1).group(Reference.TRAVELERS_BACKPACK_TAB)));

because it would create a textureless new milk bucket.

It doesn't help that in the .bucket() properties of the ForgeFlowingFluid.Properties I can only specify what the already filled bucket is, so I can collect the fluid with an empty bucket and get the vanilla milk bucket, but from then I can't place it because the vanilla item isn't recognised as a BucketItem.

 

Any way to solve this?

[ShipHeatRook]

Solved it by applying a DeferredRegister instead of creating a new item entirely