Howdy! As many have recently understood or discovered, NFTs usually don't contain the actual art work on sale, but rather just point to it.
I've had a bit of a think on what "art work" could actually be stored inside the actual token, and thus "live" on the blockchain, and the obvious answer to me is: thoughts!
You can put a thought directly into the token, and mint it as an NFT. Even the biggest thoughts are small enough to be stored directly on the blockchain.
Based on this I have launched NFThoughts.com, and minted what I believe to be the first ever thought to be stored on chain as a NFT - https://opensea.io/collection/nfthoughts
This is of course only half-serious, but it is also only half-joking, and I'd love to see what discussion ensues on the merits or idiocy of this idea :)