Slackmojis - A directory of the best custom slack emojis
CryptoKitties - Breed and collect adorable creatures using Ethereum
Discord Emoji - Iconfinder, but for emoji.
TENZ-ID - Register your identity on the Blockchain
Emoji Maker - Create custom Emoji based on Twemoji
Mini Mutants - Mini Mutants is an NFT collection of 10,000 unique images to collect.