Some things are all about packaging! With kids, if it looks fun, then it tastes good. So:
Ham & Cheese Sandwich + Cookie Cutter = Cool and Fun Lunch
Slip the cookie cutter sandwich cutout back inside the sandwich and package as usual for a lunchtime surprise!
Fun, easy and free (pick up cookie cutters cheap at yard sales and such-the metal ones work best). Aren’t those the best types of ideas?
Granted, your husband (wife) or older child might not think this is as cool as my kindergartner does. But hey, what do you have to lose?