Each winner will receive a pair of cylinders so you can live it up with a friend down your local, like Sherlock and John*. There are two ways to enter, via Twitter (which will have five winners) or Tumblr (also five winners) and you can certainly enter both for an extra chance to win! You must be following Wear Sherlock (on either site) to take part.
To enter via Twitter, RT [this] tweet
To enter via Tumblr, fill out [this] form (only once)
Ten winners will be chosen on 17 Jan, 2014
OPEN WORLDWIDE [Terms and Conditions]
If you don’t fancy your chances you can buy a cylinder for the amazing price of £3.52 / $5.80 here, at Cream Supplies.
* Please drink responsibly, or you may end up compromising the integrity of the crime scene