Difficulty: Easy
Wash and dry all vegetables. Slice the radishes and cucumber thinly. Peel the zucchini in strips, removing a thin layer of flesh with the skin. Use a cookie cutter to create flower shapes from the zucchini skin and pepper flesh. Score the centers of the vegetable slices with a cross-cut, then gently puff them open and thread onto the breadsticks.
Peel the avocados; slice half of one thinly and reserve. Blend the remaining avocado flesh with yogurt, minced garlic, lemon juice, and three-quarters of the chopped chives. Season with salt and freshly ground white pepper to taste.
Blend until smooth and creamy. Transfer to a small serving bowl and chill for 15 minutes. Garnish with remaining chopped chives. Serve breadsticks alongside for dipping.