(TrendHunter.com) The Sheetz Shark Week doughnut is being launched by the convenience store brand to offer patrons with a tasty way to celebrate the upcoming aquatic content-themed event. The limited-edition... (TrendHunter.com) The Sheetz Shark Week doughnut is being launched by the convenience store brand to offer patrons with a tasty way to celebrate the upcoming aquatic content-themed event. The limited-edition...