These are Handmade kawaii moon and cloud dangle earrings, typically handmade from lightweight acrylic or resin. They feature a pastel aesthetic, often with small star embellishments. 
Product Information
Style: Kawaii, celestial, pastel, or dreamy.
Material: Often made from shrink plastic, resin, or acrylic, with hypoallergenic surgical steel or silver-plated hooks for sensitive ears.
Availability: Similar designs can be found on online marketplaces that specialize in handmade or unique jewelry.