In a large bowl, stir together the honey, wasabi and 1 teaspoon salt until a paste forms; whisk in the oil. Add the shrimp and toss to coat. Refrigerate for at least 30 minutes. Thread the shrimp onto skewers. Preheat a lightly greased grill to medium. Add the shrimp skewers and cook, turning once, until pink and opaque, about 5 minutes. Transfer to a platter and sprinkle the sesame seeds all over.