If you're feeling fancy you could then re-sell the NFT, no need to touch fiat.
I mean sure, there is the dark web, or face to face trading... If you're into that.
According to https://blog.chainalysis.com/reports/2021-crypto-scam-revenu... - scammers took in $7.7b in 2021 alone, if they couldn't do anything with those funds, doubtful they'd go the effort of stealing them :)
You 1. mint a NFT with wallet A. Then 2. Sell the NFT to wallet B. You then deposit the proceeds into coinbase as its legitimate earnings on your NFT artwork.
If you want to get creative you can do multiple buy and sells between a collection of wallets to reduce suspicions.
* Placement
* Layering
* Integration
A mixer is layering and integration as a service