I've seen gas stations list two prices, one if you pay with cash and one if with credit. It's not quite what you asked for, but it's an example of passing optional margin related to the choice of payment on to the customer.
(Incidentally credit card companies, like Apple, really hate it; I think some states have exceptions in their laws to disallow contracting out of it?)
It's common here in the Netherlands for shops to charge extra for MasterCard/Visa card processing, and they advertise this at the till. Maestro is king in this country.
Buying airline tickets online often display the processing fee for using MasterCard/Visa too.
The important part is other options are displayed so I have a choice - iDeal, PayPal, MasterCard, Visa, bank transfer, etc.
I remember 15y-20y ago when it was becoming a trend to fuel your own car, some gas stations had two prices. One for "self service" and one "served". I believe that majority of people were trying to avoid tipping the attendant (imagine tipping £€1 for a £€10 fill, that's 10% tip).
(Incidentally credit card companies, like Apple, really hate it; I think some states have exceptions in their laws to disallow contracting out of it?)