I'm not sure if stylishly groomed facial hair is essential to drinking properly from a flask, but it's not a problem when you sip from this cool new Mustache Flask. Yep, this stainless steel flask by designer Kirsten Mathas may look normal at first glance, but when you tip it back for a swig of poison, it reveals a mustache'd bottom trimmed in brown felt. If you're mustacheless, well this is the flask for you.
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