Coin Mints are the main tool for customizing your coins. They allow you to imprint various designs onto unminted coins by using a Bottom Die and Top Die of at least the same or higher metal tier as the coin you are trying to mint.
Tier I
The Die Holder is the lower brass part of the Coin Mint, holding the Bottom Die.
Tier I
The Stamp Holder is the upper brass part of the Coin Mint, holding the Top Die.
To use the Coin Mint, you first need to insert both a Bottom Die and Top Die. This is done by interacting with the appropriate die in your hand on the brass parts intended to hold the respective die type. Once this is done, you can insert the coins you want to mint by using it anywhere on the Coin Mint hitbox except the brass parts.
Where to look for the Bottom Die
The Bottom Die in the mint
The last step is stamping the image onto the coin. This is achieved by using a hammer on the Coin Mint.
The minted coin will be stored on the edge of the Coin Mint, retrievable by interacting with the base.
If you want to change anything you inserted into your Coin Mint, you can just interact with the respective part while you are crouching. This can be useful if you want to make coins with various designs.