A vibrant cartoon with colours and smooth animation. Create a funny 3D cartoon short video for YouTube Shorts, vertical 9:16. Scene: A cute little yellow duck named Ducky is walking happily in a colorful park. Suddenly, a small funny orange cat jumps in front of him and steals his tiny sandwich. Ducky looks shocked and says, "Hey! That's my sandwich!" The cat runs away laughing. Ducky chases the cat, slips on a banana peel, falls softly on the grass, then both animals start laughing together. Style: colorful high-quality 3D cartoon, cute characters, expressive faces, funny comedy, child-friendly, bright lighting, smooth animation, cinematic camera movement. Add funny sound effects and cheerful background music. Add natural English cartoon voice dialogue. No violence, no scary elements, no text or watermark.