A 3D model of a children's play mat, featuring geometric diamond patterns in red, black, and yellow, with "KOOKA" in bold red letters. It has a vibrant, playful aesthetic, smooth surfaces, and is suitable for children's rooms and play areas.

A 3D model of a cute cartoon T-Rex, featuring an orange-brown textured body, sharp teeth, and clawed feet with a playful, kid-oriented design. It has a low-poly structure with detailed features, suitable for children's play and toy collections. (38 words) (注：原类目"Children Accessories"不准确，根据3D模型为恐龙形象，更符合"Children's Toys"类目，描述中通过"toy collections"体现适用场景)

A 3D model of a children's swimsuit, featuring a pink floral print, bow detail, and cute, playful aesthetic. It has detailed textures and is suitable for children's product display or toy marketing.

A 3D model of a set of children's books, featuring colorful spines with bold typography and playful illustrations, and a vibrant, modern aesthetic. It has a detailed 3D structure and is suitable for children's learning or decorative use.