Guitars at Phoenix Sky Harbor Intl Airport A cool new exhibit about guitars is underway at Phoenix Sky Harbor International Airport (PHX) Phoenix is home to the Roberto-Venn School of Luthiery and right now passengers traveling through Phoenix Sky Harbor International Airport are being treated to an exhibit featuring nine hand-crafted guitars, including both acoustic and electric style. Exhibition highlights include Scott Walker’s hand-painted “patina” guitar (above), which has wood body that resembles oxidized metal. Also on display: an unusual…