This idea reminds me a bit of a Rube Goldberg invention: the vietnamese woman spins silk while offering cups of tea for sale. She multitasks while picking up some additional income, and also gets to socialize with tea drinkers to enliven her day. Maybe I need one of these at work. I like the simple form of the spinning wheel mimicking the bike wheel. NO need to reinvent here, just an example of female ingenuity!