George Foreman
From being a famed boxer owning an iconic product in infomercials, Foreman at a point quit the ring and began a new career, preaching on Houston street corners and in fundamentalist churches. He ultimately opened his own church, the Church of the Lord Jesus Christ, in a mobile home where he ministered while trying to avoid the limelight as much as possible. His George Foreman Grills has also gone on to earn him millions of dollars.