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Penny develops home-made hair barrettes, called 'Penny Blossoms', which she expects to turn into a profitable homebased business. Sheldon soon points out the flaws in her production process, and helps her develop a better assembly line. Leonard, Howard, and Raj also contribute their own ideas for efficiency, production and marketing. Leonard designs the sales website, and right away they get an order for a thousand Penny Blossoms from the East Ru...

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