An emotional pitch is given by a stylist from Santa Monica, Cal., who started her own slip business; a man from Folcroft, Pa., explains why his scrubbing tool makes cleaning easier; a Denver couple try to sell the panel on their frozen yogurt for dogs; and a duo from Camas, Wash., demonstrate their hands-free, electric unicycle. Also: an update on a Season 3 drinking cup invested in by Robert and Mark.