The Worm is a really fun one. The idea is that you transfer the worm NFT from wallet to wallet (it's "trying to visit every wallet on the Ethereum blockchain"), and it leaves a non-transferrable token wherever it's been. To my knowledge, it's been transferred about 750 times without anyone selling it. https://theworm.wtf/
Another cool one is minting amulets. You write a poem, and if the hash of that poem has an amulet in it (four or more consecutive 8s), then you can mint it as a token for your collection. But you can't mint the same hashed poem twice https://text.bargains/collection/
I also met someone once who gave me (and everyone he meets) an NFT from an RFID chip implanted in his hand. That was pretty whacky.
Another cool one is minting amulets. You write a poem, and if the hash of that poem has an amulet in it (four or more consecutive 8s), then you can mint it as a token for your collection. But you can't mint the same hashed poem twice https://text.bargains/collection/
I also met someone once who gave me (and everyone he meets) an NFT from an RFID chip implanted in his hand. That was pretty whacky.