Dragons' Den has produced some serious success stories, including the first ever investment, since it first launched back in 2005, but that doesn’t mean that the Dragons can always be trusted to make the right decisions. In fact, there are a surprising number of entrepreneurs rejected by the investors who have gone on to prove them wrong and make a fortune based on products the Dragons dismissed as no-hopers.They include children’s suitcases that are now seen at every airport, low calorie ice cream that sells out at supermarkets and a hairbrush that now sits in bathrooms up and down the nation.