Totally doable, it's just a testnet anyway, you don't actually need to stake real ETH. As long as you have 1 ETH test token, you can mint stablecoins. A lot of DeFi projects used to play like this—start on the testnet, then claim they're going to do an airdrop... Once you're familiar with it, you can even go and hype up exchanges, VCs, and KOLs; Then launch your own project, cash out and run in the end, leaving a bunch of users cursing at KOLs and VCs