Did you know that there's an International Spy Museum? And did you know that this particular museum has an online shop? Well, indeed it does, offering a mix of modern-day spy kit and vintage goodies – the latter including this authentic KGB hip flask.
It's made of stainless steel and weighs eight ounces, with enough capacity for a slug or three of vodka on those cold nights. It also features the KGB emblem, with the words 'Honorable Worker of the KGB and USSR' (in Russian of course).
Flasks vary, so might not look exactly like the one in the picture, but all sell for the same price – $24 (around £16).