I just got asked to do a Game of Thrones cake for a party in a couple days as well. I’m going to attempt to make the throne of swords with a dragon on the side… something the client recommended. I’ve never seen the show and know nothing about it but this seems like a popular option. I’m going to use an xacto knife and cut a bunch of tiny swords out of gumpaste, make the throne itself out of rice krispie treats and then cover it with the swords. I’ll put pictures up here if it turns out :)