Design a small, easy-to-3D-print standalone maglev train model for FDM printing. This is a wheel-less magnetic levitation train. Do NOT include wheels, axles, bogies, or any track or rail. The underside must be smooth and slightly shaped, not flat like a normal train, to suggest magnetic levitation. The train should have a rounded aerodynamic nose, a continuous enclosed body, and subtle side skirts. Use bold, visible details only: large window shapes, simple panel lines, and intake-like accents. Avoid tiny details. One solid piece, thick walls, no thin parts. No supports, no overhangs above 45°. Length 6–8 cm. Futuristic, clean, and clearly recognizable as a maglev train.