OTTAWA — Upon hearing that Elon Musk is fabricating ventilators out of Tesla car parts, local bodybuilding champion Chad Thickman decided to build his own — out of a gasoline-powered 2019 Dodge Challenger SRT Hellcat. “My ventilator is rated at 797 horsepower,” said Mr. Thickman via Skype video. When asked why anyone would need a ventilator with 797 horsepower, Mr. Thickman simply smiled and bounced his pectoral muscles up and down.