Piggybank NFTs are 6551-powered ETH savings accounts. Anyone can mint a Piggybank, send it some ETH, and keep track of your growing balance in the NFT's onchain rendered SVG metadata. To get the ETH out, you'll have to burn the Piggybank NFT.
ETHGlobal · 🏆 ETHGlobal Waterloo 2023 Finalist · +1 more