Lampuga, a subsidiary of Hamburg-based Sashay GmbH, unveils Lampuga Air, an inflatable jet-drive surfboard that boasts a modular design, enabling owners to swap the jet drive between four different hull styles – from the standard 6.5-foot (2-m) surfboard to a short, lie-atop body board. Since an electric jet drive consisting of a motor, battery pack and other components is no small, collapsible piece of hardware, Lampuga builds the Air drive into a separate module, which secures to the hull on site. The jet drive has a 15-hp motor, good for 40-minutes of continuous use on a full charge, while topping out at 29 mph (47 km/h). The rider controls the Air with a wireless handheld controller. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one of a 1000° red hot rocket knife.