One of the best sightings on a hot summer day is a Mexican street cart loaded down with colorful piles of fresh fruit. After you place your order, the cut-up fruit is drizzled with lime juice and then sprinkled with chili powder and salt before it’s handed to you. This unexpected combination is refreshing and just absolutely mouth-watering: It’s sweet, juicy, and a bit spicy, and the salt really highlights the flavors in the fruits. It’s the inspiration for these fruit kebabs that are more interesting than plain fruit salad but just as easy to make.