Those are NFCs in the blockchain BSV, created by twetch.

The eggs were awarded last month to the users that were active in the last 30 days

The hats were limited edition and 100 were sold for a few hundred dollars, now worth thousands in the marketplace
https://twetch.app/t/cfdf080b78a5ba6bc214e70f6c465daac47ec29323725871cc2c09d96e5c3724