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Think_niti on Instagram: "Knife Aid, a mail-in knife sharpening service, appeared on Shark Tank Season 11, Episode 4 in 2019. @think_niti Founders Mikael Soderlindh and Marc Lickfett pitched their business, seeking $400,000 for 15% equity. Customers mail dull knives in a prepaid envelope, and Knife Aid returns them sharpened within a week, starting at $49 for four knives. The pitch sparked a frenzy—four Sharks (Lori Greiner, Rohan Oza, Kevin O’Leary, and Barbara Corcoran) chased the duo into the