My best friend is planning a Graduation/Going Away party for her daughter who will be attending the University of Hawaii in the fall. It's going to be an open house and she figures there will be around 100-125 people coming and going throughout the day so she's looking for easy, delicious dishes that she can make ahead and freeze, or easily make the day ahead or morning of. I told her that I would "do some research" for her, knowing that I could call on the expertise of the Chowhounders. :) Obviously, this will be more of a stereotyped sort of Hawaiian luau, not necessarily really authentic, plate lunch types of things. No Spam musubi! :) Even typical party foods dressed up with pineapple, and flowers, etc. would be okay. She's thinking of skewers of some sort (her husband can man the grill), macaroni salad, fresh fruit... but we're sort of at a loss how to continue. She's trying to keep to a budget and do a lot of it herself but is stumped because of the huge amounts of food that she'll need to prepare. Any ideas out there? She's willing and able to make the time to work ahead. Thanks so much!!