That's a good idea, really.
But I afraid that it's not so practical. I believe there were lots of systems that work like that but they accept much more than 1 penny. I myself am using a system that accepts at least 1.5$ to make a profit.
The problem with 1 penny is to manage that small amount of money will cost more than the money itself and it really not worth investing in. Maybe you should think about the management system instead?