I have a child that doesn't like sandwiches very much so I shake it up with some meat and cheese type things.
Cold chicken, summer sausage, ham, beef
cheese chunks, (cheddar, swiss or mozzerella)
fruit: apple,grapes, orange,
french bread chunk, crackers,
raw veggies-- cabbage (her favorite) carrots, celery, cucumber, .......
This can all be "made" the night before (unlike a sandwich) and you can definitely have several days worth cut up and ready.