Aarnio about Bubble Chair: "After I had made the Ball Chair I wanted to have the light inside it and so I had the idea of a transparent ball where light comes from all directions. The only suitable material is acrylic which is heated and blown into shape like a soap bubble. Since I knew that the dome-shaped skylights are made in this way I contacted the manufacturer and asked if it would be technically possible to blow a bubble that is bigger than a hemisphere. The answer was yes. I had a steel ring made, the bubble was blown and cushions were added and the chair was ready. And again the name was obvious: BUBBLE."
Another cool thing about the bubble chair except for its looks is the fact that it swallows the sounds and you feel isolated inside in a pleasant way, even when you are in a crowded place.