A ballroom dancer turned inventor brings a bit of sparkle into the Den via a tango and a glitter ball; Theo Paphitis and Peter Jones crawl into a new concept for the camping industry; and a labrador called Margot helps to sell the idea of doggy ice cream.
Also in the Den: a world kickboxing champion, two Welshmen with their celebrity-backed toffee vodka, and three friends from London who hope to capitalise on empty loft space.