"Paypal keeps $0.30 + 2.9% of every donation, so please keep anything less than $0.32 as they have enough money already."
i think Cash App has the lowest fees i've seen at like $0.01 which would still be too much.
not saying it is impossible - but likely not viable directly with the current payment providers.
Sure, I think a lot of those donations would amount to a few pennies or so at once, but I feel like a lot more people would be willing to support creators if they didn't have to constantly choose which to support.