Just as with infectious diseases, you only have so long before kids develop immunity to antidotes for picky eating habits. Calling broccoli a miniature tree? So last year. Skewering chicken pieces with lollipop sticks? Old hat. The old, "If you don't eat it for dinner, you'll have it for breakfast" routine? Laughable. Keep ahead of the hunger game with My Food Passport ($10). Have kids stamp their passports and create detailed notes when they try new foods. We can see this working for a few picky adults we know, too.