For the shrimp lemongrass skewers, first remove the guts from the shrimp. Cut off lemongrass ends, unroll 3-4 layers and skewer 3-4 shrimp at a time.
Mix lemon juice and zest with chili, ginger and garlic. Add peanut oil and salt and pepper to taste.
Grill shrimp-lemongrass skewers on grill over direct heat for 1-2 minutes on both sides, arrange on plates and serve brushed with marinade.