Keep Calm And Save The Princess premium t-shirt

'Keep calm and carry on' is a popular retro design available on a variety of garments and accessories, from t-shirts to phone cases... but what about making it even more retro, and what is most important, more geeky?!

You can get something like this, for example: a pixelated 'Keep calm and save the princess' text with a crown, also pixelated. 

Be aware, she might be in a different castle.