I stole this idea from a friend of mine, because I just loved loved loved it! We put up a big world map in the kitchen, and every time my kids actually try a new food (a couple of bites at least), they get to color in the area from which the food originated with a highlighter. We call them Food Explorers, and they get to explore the world of food this way. There's nothing as cool as hearing a young kid say, "Hey, Mom, can we eat something from Russia tonight? That's a huge one to color in!"