What could be an onchain (birthday) present? A cool ENS domain? A rare artwork?
Create a Token Bound Account, fill it with some cheap NFTs and random meme tokens and send it as a present to your recipient's address.
Great question! ENS domain sounds like a good choice. I would also consider minting a photo/memory that the person values on their favorite chain. If you want to go bigger, get a new wallet, fill it up with a bunch of assets you know the person likes, and then gift them the private key.