CryptoKitties - Breed and collect adorable creatures using Ethereum
Furbo - A treat-tossing robot for your dog
Mars Genesis - 10,000 unique parcels of Mars stored on the blockchain
Petcube - Play laser tag with real pets from your smartphone.
Crypto Corgis - Crypto corgis live (and die) on the blockchain
Petcube Bites - HD pet camera that flings treats