Swap list for banknotes

Hi, I’m wondering if there ever will be a general banknote swapper list. I mean that you don’t have to select a country or the exact banknote. Just a list like there is for the coins, with “Banknotes that might interest him/her” and “Banknotes that might interest me” columns. Many of us collects paper money, so it would be useful.
Regards,
Tamas