Grilled Shrimp and Lemon Kebabs

8 large shrimp , shelled and deveined 3 tablespoons extra virgin olive oil 1 large fennel bulb (halved lengthwise, cored and thinly sliced crosswise) 1[...]

24 medium shrimp , shells on, deveined 2 lemons , cut into small wedges 3 yellow squash or 3 zucchini , ends trimmed 2 tablespoons olive oil 1 teaspoon kosher[...]