I have the canopy, tables, and pictures from Jeff. I also bought some water and plan to put it in a cooler so we will have something to drink. I am also planning to bring a folding chair to sit on. You might want to consider bringing something to sit on. Since it might rain, I bought some cheap shower curtain liners so we can string them up on three sides to protect things from the rain if it does come.
Really, the only thing I can think of to tell people to bring is any pictures they might want to sell. They should have a label on the back with your name and how much you want to sell them for.
I don't know where are assigned location is yet, but it shouldn't be too hard to find us as it is not that big of an area.
Rhonda