As Dr Jagadeesh writes the technique is known and there have been several traditional and newer designs ( see Mitticcol above left) yet this innovation is remarkable for its elegance. I agree with him as I had seen several similar concepts in competitions like Techfest.
What was more interesting to me was her childhood experience. "When I was four, my Grandad gave me a hammer and began to teach me how to make toys from scraps of materials found in his garden shed. I loved the fact that we could make something out of seemingly random bits, and my interest in sustainable design was born".
How do we unleash creativity of our children?