To create a traditional look for Ganpati decor, start by using vibrant colors like red, yellow, orange, and gold. Decorate the space with marigold garlands, banana leaves, and traditional Indian fabrics like silk or brocade for a festive touch. Place oil lamps (diyas) around the idol for a warm, spiritual glow. Add a rangoli design at the entrance or near the idol. Incorporate traditional elements such as brass bells, ethnic patterns, and incense to enhance the spiritual ambiance.