"Shake Shacks nationwide are rolling out a special limited-time menu, featuring burgers and shakes inspired by the hit series Game of Thrones. The Seattle Shake Shack starting today (through May 19) is offering the Dragonglass Shake, a minty-white-chocolate-custard concoction with toffee chips that have been dipped in black food coloring and butter to create a shiny 'Dragonglass' effect." - Gabe Guarente