Japanese designer Kenji Miyamukai has created the Egg Form Chair.
From the designer:
The comfortable leather and shape of Egg Form Chair give it a unique feeling of being wrapped into something more protective and one can also feel a sense of tranquility. The Egg Form Chair is exclusively made of a special leather and Fiberglass Reinforced Plywood (FRP). This combination has been adopted to the seat side structure and gives a third curved surface with comfort. It has a profound size, but its overall weight is quite light.