This for a change is something that a lot of people could do with occasionally; it is a flask that comes with its own built in shot measure. The collapsible shot measure fits into the side of the flask so that you always know that there is a measured available no matter where you are or what you are doing, cheers!
Here is why the Shot Flask is so cool and something that would make a great gift;
The Shot Flask is a drinking flask with a twist. In addition to its premium stainless steel and bonded leather wrapping, the Shot Flask contains a hidden shot glass allowing you to pour a precise 2-ounce shot whenever desired. Using a collapsible design, the shot glass can be flattened for compact storage and easily expanded for your drinking pleasure.
This useful Shot Flask is priced at around $25 in the US and £16 in the UK
Source [Cool Material]