Yes, I should have made it clearer that I'm envisaging a bank setting this up rather than Joe P. Bloggs! Maybe I'm the only one who imagines they would be click

Yes, I should have made it clearer that I'm envisaging a bank setting this up rather than Joe P. Bloggs! Maybe I'm the only one who imagines they would be clicking "Donate $0.01" buttons all day, if it genuinely cost just $0.01, but it feels as though there's an awful lot of money to be made, even in banking terms.