Machine water pistol

The world’s most sophisticated machine gun water pistol, valued at £1,250, is put through its paces by its designer, engineer Alex Bygrave.

The first-ever Gatling-style water pistol, which can hold ten litres of water and has a firing range of 12m, was built using 55 separate parts from everyday life.

For instance, a black cab’s windscreen wiper provides its rotary motion and a walking pole handle makes the pump. Many of the parts were fitted together using Sugru’s hand moldable self-setting rubber in a test of the revolutionary product’s waterproof properties.