A flask was once a common men’s accessory, like a watch or a pair of cufflinks. But as drinking at work (or at lunch) became less acceptable, the flask was relegated to a travel accessory that you only brought out for special occasions. With the popularity of Mad Men, some of that retro style is coming back. The flask isn’t a staple by any means, despite all the daytime drinking they do on that show, but it is enjoying a bit of a comeback as an accessory. The Mustache Flask is not only a stylish flask, but it is one that serves two purposes. First, you can use to store a few shots of high quality whisky. Spirits should not be stored in flasks for extended periods of time, so only pour as much as you plan to drink in a couple of days – or as much as you might want for an emergency situation. Second, you can use it as a prop when Instagramming photos in a bar because it looks like you have a big silver mustache when you take a swig. And after a few swigs, that starts to be a very funny feature that makes buying this – or buying it as a gift – very worthwhile.