Alright, let's say 10ยข. Everyone with a personal Internet-enabled device can most certainly afford that. You could even refund them the money later, as the goal is to obtain the payment identity -- not the cash.
You can add funds to a PayPal account without a credit card. You can buy a PayPal card with cash or send funds through MoneyGram. There may be a minimum required amount though. I'm not entirely sure of the specifics, but I know, in general, it's possible.