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There's potential millions at stake when the Sharks recognize one irresistible product and a feeding frenzy ensues among all of them, including guest Shark Steve Tisch, co-owner of the New York Giants and film producer. Whose offer will win? This week's entrepreneurs include sisters from Normal, Illinois whose gourmet edible cookie dough is meant to be enjoyed unbaked; Los Angeles entrepreneurs who've created organic flavored milk that tastes like what's left in the bowl after you've eaten your favorite cereal; an iPhone app by a Georgia inventor that uses the phone's built-in hardware to make it spin hands-free for panoramic picture taking; and an interactive workout technology from an Austin, Texas entrepreneur.