NFTs are currently not enabled on the XRPL, as stated on their Github: It requires an amendment to the XRP Ledger protocol, which increases complexity and adds more types of data that must be tracked and maintained as part of the ledger indefinitely.
New transaction and data types require new implementation code from client libraries and wallets to read, display, and transact with NFTs. This means that we are currently reaching out to Ripple and XRPLabs to get this done as smoothly and efficiently as possible.
After minting, the initial MONKEE token will be burned. By depositing 1 MONKEE token into the MONKEE MACHINE, you will receive 1 MONKEE NFT in return. The MONKEE token received by us will automatically be burned after. Meaning, that the supply will decrease significantly after minting is possible.
In the meantime, the MONKEE token will be utilized as an IOU to obtain the NFT in the future.