Pick up any glass in Turkey and chances are there’s a letter P on the bottom of it, standing for Paşabahçe, Turkey’s top manufacturer of glassware and housewares. Blue-glass eye amulets (nazar in Turkish) that ward off the evil eye are sold everywhere in Turkey, but the items here are actually locally made. They range from simple, silver-dollar-size keychains to hefty, gilded wall hangings. Other souvenirs include the tulip-shaped glasses seen in every teahouse in town and ornate Ottoman-inspired vases that look like they could have been lifted from Topkapı Palace. Another contender for your collection: a piece of twisted blue-striped çeşm-i bülbül (nightingale’s eye) glass, a Venetian glassblowing technique made distinctively Turkish.