You'll be hard-pressed to find a kid that doesn't jump at the chance to eat a hot dog, but they aren't meant to be eaten cold and most kids won't have a way to cook or heat them once they get to school. Not to worry! You can send hot dogs to school without them arriving cold and hard. Boil some water and fill a thermos. Then toss a couple hot dogs into the thermos and pack it in your child's lunch. By lunchtime the dogs will be cooked and warm. Just include the bun and any condiments your child likes and you've got a ballpark-style meal on the go.