ronnie - I had the same thought, so we just repacked everything, or we put it in plastic to start. We even bought plastic wine glasses (ugh!). That, of course, will define the upper limit of the $ of our wine. But we are open to sharing, as the box is large and the plastics (well, I can't say 'glasses') we are bringing are many.
Cathy2 - I heard your cry. We will be bringing an old card table, two camp chairs and a market umbrella. From the size of the crowd I'm guessing we might be camped out way past the black stump, so will bring full picnic survival gear. Including extra water, to be sipped from said plastic wine . . . . vessels.
Food update: the Baba is resting in the fridge, melding flavors as we type. The Cuban black beans are soon headed there for the same gentle rest, after we do a Q.C. check tonight (called 'dinner'). The pork shoulder has been in marinade of citrus, onion, garlic, oregano, cumin etc. since early morning, and will go on tonight around 9pm.
We are leaving our dogs at home. As gentle as I know them to be, I care too much for them to bring them to a gathering of well meaning people. Some well meaning person, or perhaps a child, will find great pleasure in feeding one of my poochini. Ours are always willing to accept a treat. But I found out, the hard way, that picnic food doesn't always agree with their stomachs. Three days of, well, how should I say this . . . 'cleaning up after them' until their systems regained stability was not worth the several hours of companionship at the picnic. We'll leave them home and snoogle them when we return.

See ya around 11.
Cheers,
DRC1379