Mexico is one of those destinations where you can find almost any souvenir you can dream up. The trick is finding something that feels authentically Mexican—not something mass-produced that could have come from an airport shop anywhere in the world. When I travel, I look for souvenirs that bring the trip back months later: the heat, the colors, the smells and the little moments that made it special. Mexico is especially good for that. Its markets and artisan shops are filled with beautiful pottery, textiles, jewelry, folk art and food that are worth making room for in your suitcase....