A U.K.-based prosthetic and creature effects artist, has put up some mind-bending Instagrams from Game of Thrones, including this one of Nikolaj Coster-Waldau.
In case you were wondering how they turned incestuous super-hunk Jamie Lannister into the one-armed sad sack he ends up as later on.
According to the Instagrams, a couple different false hands for Coster-Waldau were designed.
Also, bonus Instagram, here's Catelyn Stark hanging around post-Red Wedding.
UPDATE: It appears as though the original poster of the photos removed them. They were super weird looking though.