An NFT is a digital deed representing ownership over a unique digital object. These objects include everyday purchases and one-off collectibles, covering products such as aeroplane tickets, education degrees, sporting accomplishments (such as trophies or medals), art, music and other collectable items.
The reason NFTs are so valuable is because they are unique and secure. Each token is not just 'credible', but it is numbered and attached to a unique wallet. They are impossible to replicate, but relatively easy to trade and own.
NFTs for your business could include tickets to events, merchandise, certifications, products, and more.