Steve Caplin salivates over a jet-powered flying motorbike as well as a 5-seat flying car with massive range and speed - if it works. Shark denticles could help us improve aerodynamics. Citymapper is offering discounted London travel passes. Ikea is to sell pollutant-resistant curtains. There's an exploding Kalashnikov drone, mice that can see in the dark and a camping torch which would make a Swiss Army Knife envious. And Steve explains why using his Swiss Army Knife meant he couldn't use is Swiss Army Knife for some time afterwards!