3D design of a Table Base

The base is sculptural, seamlessly twisting upwards in a smooth, organic motion like a tornado but the envelop/body/surface is smooth and shines like a mirror in real life. The top of the base is 30cm diameter surface, while the narrowest point near the bottom is 5cm in diameter, before expanding slightly onto an oval-shaped supporting disk for stability. The overall height is 50cm. The base should have a flawless, polished surface, made from coated steel either bronze or silver color. the attached elevation drawing is a free hand sketch of the idea which I hope it is easy to understand what I want to make.