Imagine a world where each nail becomes a burst of joy and color, capturing the essence of playful bubbles floating through the air. The design should emphasize iridescent hues playing with light and exuding a sense of buoyancy, helping create the illusion of 3D dimensions on the nail surface. Accent each nail with a clear acrylic covering that reflects light like a soap bubble in the sun. Incorporate playful pastels, and alternate with shimmer effects to intensify the theme of buoyancy and lightness. The overall feeling should be one of whimsy, playfulness, and elegance fittingly suitable for both a casual day out and a soirée.