Envision a bold and trendy nail design that embraces the flair of the early 2000s with a modern twist, where the standout feature is a "duck shape" silhouette. Experiment with colors that make a statement, such as deep purples or electric blues, and add a touch of metallic shimmer for an eye-catching effect. Integrate playful geometric patterns or neon lines to accentuate the shape and add depth to the design. Aim to capture the playful elegance of aquatic life through an artsy interpretation on each tip. Let this nail design be a vibrant expression of nostalgia reborn with contemporary class.