Gameflip - Buy and sell video games from people not companies
Mars Genesis - 10,000 unique parcels of Mars stored on the blockchain
Degen Brackets - Create and join custom on-chain March Madness pools.
Loot - Loot is a bank account ledger.
OpenSea - Ebay for cryptogoods. Buy and sell items on the blockchain.
CryptoAlpaca - Adopt unique alpaca on blockchain and shear wools everyday