I see you have found This One's trove of magical devices and accompaniments. Much wonder is found here, but please, do make sure that you select the item that is appropriate for your needs.
Official HBO Game Of Thrones Sigils - Targaryen Gold Various Designs Gray Guardian Case for Apple iPhone 7 / iPhone 8
Official HBO Game Of Thrones Arya Quote Needle Graphics Hybrid Case for Apple iPhone 7 Plus / 8 Plus
Official HBO Game Of Thrones Metallic Sigils - Targaryen Various Designs Black Sentry Case for Samsung Galaxy S8