Dogecoin (DOGE) is based on the popular "doge" Internet meme and features a Shiba Inu on its logo. Dogecoin's creators envisaged it as a fun, light-hearted cryptocurrency. that would have greater appeal beyond the core Bitcoin audience, since it was based on a dog meme.
Cronos ID is the result of a need for communication and identity infrastructure on Cronos. In web3, users are identified by long and unintuitive address strings; Individuals rely on off-chain applications to communicate, which can be prone to exploits.
Ferro Protocol is a StableSwap AMM protocol that allows users to exchange with low slippage and minimum fee and farm tokens by creating more efficient pools consisting of highly correlated assets, as well as allowing better composability between protocols in the Cronos ecosystem.