There are labs in China that will wink wink pass any product you send them for a flat fee.

The problem is that having passing test results from a random lab doesn’t help you if the FCC (or one of your competitors) discovers that your device is not actually compliant. So you have to be careful about what you’re getting.

Yes. The FCC has a list of accredited testing labs here: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm Many are in China and have reasonable prices.

That's a TERRIFIC idea and a great business model.

Actually, I'd use such a service myself.