Transplanted Parisians offer the Sharks a taste of their grandmother's almond-water recipe; a NYC city duo look for an investment in their eco-friendly pizza box; a San Francisco entrepreneur claims to have come up with a "game changer in real-estate investing"; and cousins from Utah pitch their idea for sanitizing germ-ridden cell phones. Also: an update on GrooveBook, which Kevin O'Leary invested in during Season 5.