What the ReJigger does is simple: it has a compartment for the right quantity of each ingredient for a mixed drink. (Inventor Marcus Wang claims it makes an 'endless number' of different cocktails, but he starts with 9 basic recipes.) The Rejigger then caps onto a standard pint glass so you can shake the drink, and then works as a strainer to get the chilled cocktail into your serving glass.
'kickstarter' on Serious Eats
Eric Prum and Josh Williams wanted to translate the back-porch-drinking experience of the mason jar to their serious appreciation for quality cocktails.
A pair of childhood pals and self-proclaimed nerds cook up a revolutionarily affordable home-espresso machine, put the project on Kickstarter, and overwhelmingly surpass their funding and backing goals? Must be all the caffeine.