ninja mascot 3d model

Create a cute masked martial arts mascot for 3D printing. The ninja has a large round head, simple eyes, a smooth hood, and a face mask. It stands upright in a neutral pose with both arms relaxed at its sides and closed fists. The clothing is a simple ninja outfit with a cloth belt only. The back must be completely smooth and empty with no backpack, pouch, cape, scarf, straps, ropes, swords, sword sheath, weapons, accessories, or decorations. Design the model as one solid watertight object with thick walls, rounded edges, a flat base, and minimal fine details. Optimize for FDM 3D printing.