Iron Maiden, The Walking Dead, and Metallica come to mind, especially the first two. Love the game play, theme will not get them into my house. 3 of the best gameplay pins Stern has made in the last 10 years, but they are no-go for me in terms of adding to my collection. Luckily Metallica was rethemed into GOTG, so it's an option......
Seriously though, if IMDN and/or TWD were rethemed to a more family friendly theme the rethemes would jump to the top of my next pin list immediately!