We have done various different things over the years. A couple of times we got the food boxes - like you get in macdonalds and filled them prior to the party with juice carton, sandwich, sausage roll/mini sausages, little orange and some grapes or cherry tomatoes, a box of raisins, a fairy cake and a biscuit and a small packet of crisps - that worked quite well and they all just left the rubbish in the boxes. As we always had summer parties, I just got a tub or two of icecream and cones and made everyone up a cone and left out little bowls of all the toppings and let them dip their cones in them. One year we did hot dogs for everybody - other times a little buffet with usual stuff, another time some mini pizza's and let them make their own topping. I also know someone who justwent out and bought them all happy meals! Other things are popcorn, cutting the sanwiches into shapes with a cutter or doing pinwheel sandwiches where you roll and slice them into circles - cubes of cheese, chicken dippers, raisins and any mini cakes or biscuits you feel like.