A crossed NFT is a digital object that can be used in multiple collections. Imagine that an addon can equip different NFT avatars from different collections. For example, a limited edition of 10 hats that are transferable and wearable between different collections. Although these hats are a shared resource between collections, there can only be 10 NFTs equipped with this hat. The hat will be displayed with a different graphic design depending on the collection in which it is displayed. This allows users to create more open narratives without knowing what is coming or planning it.