A 3D model of a rainbow-shaped abacus, featuring colorful wooden beads and a wooden base, with a playful, minimalist aesthetic. It has movable beads for counting and smooth edges, suitable for children's educational play.

A 3D model of a vintage-style children's toy car, featuring retro blue body, red wheels, and metal frame, with a classic, playful design. It has detailed, low-poly technical traits and is suitable for kids' play and decorative display. （说明：纠正类目为"vintage-style children's toy car"，符合图片内容，非"Accessories"；包含核心对象、材质特征、风格、技术特点及适用场景，60词内。）

A 3D model of a chess set, featuring silver and gold pieces on a black-and-white checkered board, with an elegant, modern design. It has high detail and low polygon count, perfect as a toy for gameplay or decorative display.

A 3D model of a colorful balloon bunch, featuring shiny, pastel metallic latex and a festive, cheerful design aesthetic. It has high-detail, smooth surfaces and is suitable for party decorations, kids' play, and celebration events.