(TrendHunter.com) The Arby's King’s Hawaiian Sweet Heat Sandwiches are being launched as a series of collaboration menu items that merge two recognizable brands together fro delicious results. The sandwiches... (TrendHunter.com) The Arby's King’s Hawaiian Sweet Heat Sandwiches are being launched as a series of collaboration menu items that merge two recognizable brands together fro delicious results. The sandwiches...