Users have the option to stake their GBT or gNFTs to earn a portion of the swap fees generated from a specific collection. GBT or gNFT is staked in the GumBar contract. Users can unstake or claim their rewards at any time. Yield is paid in the form of base asset and GBT, for example ETH and GBT. This is real yield that comes from swap and redemption fees on a collections respective bonding curve and gumball machine.