Chocolate fountains are really in this year. Parties I've attended have had everything imaginable on the table. One recent one was way over the top with:
soda, items for punch, ice, cups, plates, utensils, fruit juice for the kids, kool aid mix, tea bags, coffee and coffee supplies if they have a deli what about chicken fingers, fried chicken, baked ham or a cooked turkey
Wow, that's really wonderful! What about hoagies/subs? They can be cut into smaller pieces that children could eat. Plus they will last longer as people will take less. Or perhaps a meat and cheese tray? Cheese and crackers? Our auctions are adults-only and are primarily appetizers/snacks and desserts so it's hard for me to think. Do they have hot food in their deli that you could ask for meatballs? Even if they donated blocks of cheese, you could cut them up yourself and make a tray with pepperoni. Fruit and vegetables - you could make trays of those after cutting them up.