Personalized your iPhone with your favourite television series theme The Big Bang theory with these The Big Bang Theory iPhone case covers below. There is Bazinga iPhone case cover in red colour. There is soft kitty, warm kitty iPhone case in grey colour. And there is Sheldon Cooper iPhone case featuring picture of Sheldon and text saying “Your head will now explode”. These iPhone case covers are available for iPhone 5 and 4. Great for any The Big Bang Theory fanatics.