How do you suggest the people who are using Tor for anonymity pay money to use Tor? That might make sense for cryptocurrencies, but for Tor I think it's unusable.
I believe this could be done using zero knowledge proofs, ala tornado cash (which I'm not familiar with in practice, but I've read the algorithms behind it). You'd need some service that produces zero knowledge proofs that someone sent some funds to the service, and got their slot in return. Put down your pitchfork, but I think this would essentially be an NFT backed by a ZK-snark.
