Tate Stock invented a back-pain relief wheel from $400 worth of sewer pipes and yoga mats. He bootstrapped Plexus Yoga, renamed Chirp, into a startup that expects $12 million in revenue this year. Tate says 500,000 people have used his wheels (which sell for $45 to $65) for drug-free relief.
Tesla shares are down 40% so far this year, and Deutsche Bank analysts said they price in another 19% of downside as Tesla makes a major shift as a company.