Inspired by a customized bag that was given to him by his wife—it was inscribed with his collegiate basketball-jersey number and lined with fabric from a favorite pair of pajama pants—Jed Frost founded Frost, a company that creates personalized bags representing customers’ unique passions and experiences. Based in Lexington, Ky., Frost employs a team of local artisans to handcraft its one-of-kind bags. Each commission begins with a client interview, eliciting the customer’s lifestyle and personal interests. Th…