Games: I usually bring a chess and scrabble board along. Scrabble is great for all the mind games you can play, so nobody wants to play with me My friends and I find chess very exciting and we can play it for hours
Food: I like my picnics to be quite deluxe, so we pack along some champagne. I make my own guacemole sauce, which is very nice if you eat it in a fresh roll with deli bought ham, swiss cheese, and rocket. Or you could eat the guacemole with pringles. Guacemole sauce = avocado in a blender, add finely chopped red onions, then season with lemon juice, salt and pepper to taste.
Camera: will bring it along but usually don't take many photos.