The MUTANT GRANDPA Country Club is a collection of up to 10,000 Mutant Grandpas that can only be created by exposing an existing Grandpa Ape to a vial of MUTANT SERUM or by minting a Mutant Grandpa. The OG Grandpa Ape Collection: https://opensea.io/collection/grandpaapecountryclub Inspired by Mutant Ape Yacht Club. We are not affiliated with Mutant Ape Yacht Club.