Quaker Rice Cakes are Awesome! As a person sensitive to wheat, and who has had trouble getting fiber into my kids' diets, I would recomment Rice cakes. They are good with peanut butter, nutella, jelly, honey, cream cheese, and I have found some pretty ingenius uses for them.
For parties, I found I can make a canape by slicing fruit or meat very thinly and topping the rice cakes. Two of them make a much more attractive "finger sandwich" than regular bread. We serve them with soup instead of crackers, I have given them to teething babies, I have also used them to pair unlikely ingredients in an emergency when unexpected guests drop by. That would be your canape factor.,
You can arrand them in an array to teach math to children. You can make happy faces on the soup, or top casseroles after cooking is complete. They keep so well in backpacks, not getting too warm or cold, and if you forget them, it is a lot better than fresh fruit or yogurt to be forgotten.
We take them on airplanes when there is no dinner service. (and probably should even if there is ) I do not take food in my purse to movies, but if I did, it would be rice cakes. I have never found a way to get people to try new foods, or a food that takes a road trip quite so well as these. It is fairly low in calories for what it is, you definitely feel full, can avoid allergies, switch up the flavors, throw parties, the list is endless.