Donut Shack Sweeten your evening with an Island Donut Shack Classic. This perfect pre-roll is freshly hand packed with Donut Shack, Island’s dessert strain sure to satisfy your sweet tooth. he well-rounded sugary goodness of Donut Shack’s terpene profile consists of beta caryophilene, humulene and limonene. No trim, no shake, no blends. Only single-strain, whole flower California cannabis.