Twenty-five years ago, after Mei Xu emigrated from China to the U.S., she loved going to Bloomingdale's to gaze at their housewares. She eventually started making candles in her basement with Campbell's Soup cans, an experiment that led to the multi-million dollar company Chesapeake Bay Candle. PLUS in our postscript "How You Built That," we check back with Dan Kurzrock and Jordan Schwartz, who turned up-cycled beer grain into a snack bar called ReGrained.