Only Paypal that is funded with a checking account or a cash balance at Paypal. Even then, I'm reluctant to accept Paypal at all. Because, inevitably, somebody will get confused on how their Paypal account is funded and then I get the headache of sorting it out.
I'm here to raise a little money for Geoff and get us some cool calendars, NOT to supply tech support for funding.
I know it sounds harsh, but I just don't want to mince words and then people get confused.