6oz Blue Mustache Hip Flask big bang theory and it will sit on

and it will sit on the shelf

the bottom won't fall out of it like lower quality flasks

there is a butterfly on the front of the flask and another butterfly in the back

The flask in our photo shows a group of people taking a shot

6oz Blue Mustache Hip Flask big bang theory and it will sit onThis 6oz hip flasks features a blue mustache set against a black background. As with most of the hip flasks we offer this one can be customized want to change the color of the mustache? No problem! What to change the background color? No problem! We can custom create and personalize this 'stache flask anyway you want it. Mustache flasks have become popular for special events that are more formal, specifically weddings. A great mustache hip flask