Tonight, a Welsh grandmother has the Dragons in fits of giggles as she cooks up a storm and offers a percentage in her food loving website. Usual Den rules are blown out the window when a Tyneside couple pitch their innovative haircare brand for children, and the man who has built the world's biggest sand sofa tries his luck for investment. Elsewhere, Peter Jones tries out an interactive game in a urinal, Deborah Meaden tries lava bread for the first time and Hilary Devey reveals what a multimillionaire's horse eats for breakfast.