For a quick snack and a twist on the pork loin thing.....buy one of the pre-marinated loins and grill it like Monie suggested. Pull it off the grill and wrap in foil so it can rest for 10 minutes.
Slice it thin and make sandwiches, adding a slice of your favorite cheese and some bbq sauce. If you can find it....King's Hawaiian Sweet Rolls make this a perfect sandwich.
Why shoot on the last day what you wouldn't shoot on the first?