Over the last 24 hours, CyberKongz, a collection of animal-themed nonfungible tokens, has become the top burner of Ether transaction fees. In just 5 hours, it has burned 1,240 ETH (about $4 million) and is still ahead of both OpenSea and Uniswap in terms of fee burning. Gas prices have skyrocketed as a result of the widespread monkey minting, with average transactions reaching a high of roughly $25, their highest level since May.