Russian Roulette is a lime and strawberry flavoured vodka-based drink packaged in single 20ml bottles which come in a box designed to resemble a gun chamber.
Four bottles are sold in each pack with one of the miniatures containing a liquid which turns the tongue bright green.
The idea is that a group of drinkers down a shot each then open their mouths to reveal whose tongue has turned green. The ‘victim’ then has to perform a forfeit. Russian Roulette is available in Holland, Denmark and Belgium and the company of the same name is now seeking a UK distributor.