©iStock/Michael Pettigrew Justin and Rachel Bernhaut decided to reinvigorate their Jack N' Jill toothpaste business, owned by Justin's father and familiar to many growing up in Australia the 1950s. The Bernhauts invested $150,000 in formulating the product, relaunching the brand and then using the original machinery to make the first 50,000 tubes by hand. From day one the couple created Jack N' Jill as a global brand , setting up websites overseas and now more than half the business' sales are generated overseas, with a turn of more than $8 million a year. Read more: How small family business Jack N' Jill went global