ESPN is a large network conglomerate. You would have to fight fire with fire, but I like your many small contributions idea for NIL. If you want to combine NIL with a message to a sports network like that the only option I can imagine would be something like Peacock. I am not a big fan of Peacock, but it has its benefits at times, and I think it can be improved over time.
Anyways, if properly promoted, maybe some enterprising Notre Dame supporter can rally the fanbase to sign up for Peacock on a specific date, or time frame, with the promise of increasing the revenues allotted to Notre Dame in the current deal if a certain number is reached. Obviously, do not set the date unless you have a certain number of pledged subcriptions.
Still, it may not register with ESPN unless it is unexpectedly wildly success and people also cancel their ESPN for a month or two, but it might increase bargaining power for a better deal with NBC/Peacock for Notre Dame at some point. This is the only network/NIL message scenario that I can currently think of at the moment.
Not quite like the collection basket at Mass but maybe some will see it as a small way to chip in. Anyway, whatever ideas are adopted, I do like the idea of finding ways for small donations to make an impact.