According to Southern Savers, the mystery Penny Item for Sunday and Monday is:
Publix Hot Dogs
(the house Kosher brand can be substituted, just ask)
Florida and some Georgia stores do not participate in this promotion.. sorry :(
You are eligible to receive the penny item when your total hits $10 before you hand over your coupons. Many of our local stores do not require that you take the penny item coupon (found in the weekly Sunday ad), but I have heard change is happening in a few places, so take the coupon just in case.