The handlebar mustache has been in vogue for a while now
Indeed, multiple years. MMM, starting in 2011, caught the beginning of the wave, but it was at least a year or two before that that it started getting big.
It just gotten huge in 2013, I see Mustache things all over the place.
For example, I own a bunch of chip clips for potato chip bags in the shape of mustaches because that was all the dollar store had.