One possibility that is a HUGE hit among all of my kids' friends is hot dogs wrapped in crescent rolls. You can slit the hot dogs and add cheese, use the cheese-stuffed hot dogs, go without cheese (for your lactose-intolerant DD). Those have been a reliable hit. That may not be best for the vegetarian friend!
That said, I really really like the idea of doing the sandwiches with the Williams-Sonoma SW cookie cutters. I love mine!

That, honestly, might be the most fun idea. To make it easy, I'd just make up a variety of sandwich fillings, set out the bread and the cutters, and let 'em make their own sandwiches. You might want to make up a few just to have sitting out. I'd sandwich flavored cream cheese or peanut butter in tortillas and cut out little finger sandwiches. Some easy sandwich fillings would be tuna/chicken/egg/pimento cheese salad, peanut butter (with or without jelly), strawberry cream cheese, southwestern cream cheese (cream cheese with salsa mixed in), chicken quesadilla filling (diced chicken, well-drained black beans, salsa, shredded cheddar cheese, and cream cheese), etc.
Have fun! Shoot, I'd love to do a SW movie marathon, but my kids don't like SW.

I have no idea where I went wrong.
